Unit-2-and-3-codes

# big-o-performance A simple html app to demonstrate performance costs of data structures. - Clone the project - Navigate to the root of the project in a termina or command prompt - Run 'npm install' - Run 'npm start' - Go to the URL specified in the terminal or command prompt to try out the app. # This app was created from the Create React App NPM. Below are instructions from that project. Below you will find some information on how to perform common tasks. You can find the most recent version of this guide [here](https://github.com/facebookincubator/create-react-app/blob/master/template/README.md). ## Table of Contents - [Updating to New Releases](#updating-to-new-releases) - [Sending Feedback](#sending-feedback) - [Folder Structure](#folder-structure) - [Available Scripts](#available-scripts) - [npm start](#npm-start) - [npm run build](#npm-run-build) - [npm run eject](#npm-run-eject) - [Displaying Lint Output in the Editor](#displaying-lint-output-in-the-editor) - [Installing a Dependency](#installing-a-dependency) - [Importing a Component](#importing-a-component) - [Adding a Stylesheet](#adding-a-stylesheet) - [Post-Processing CSS](#post-processing-css) - [Adding Images and Fonts](#adding-images-and-fonts) - [Adding Bootstrap](#adding-bootstrap) - [Adding Flow](#adding-flow) - [Adding Custom Environment Variables](#adding-custom-environment-variables) - [Integrating with a Node Backend](#integrating-with-a-node-backend) - [Proxying API Requests in Development](#proxying-api-requests-in-development) - [Deployment](#deployment) - [Now](#now) - [Heroku](#heroku) - [Surge](#surge) - [GitHub Pages](#github-pages) - [Something Missing?](#something-missing) ## Updating to New Releases Create React App is divided into two packages: * `create-react-app` is a global command-line utility that you use to create new projects. * `react-scripts` is a development dependency in the generated projects (including this one). You almost never need to update `create-react-app` itself: it’s delegates all the setup to `react-scripts`. When you run `create-react-app`, it always creates the project with the latest version of `react-scripts` so you’ll get all the new features and improvements in newly created apps automatically. To update an existing project to a new version of `react-scripts`, [open the changelog](https://github.com/facebookincubator/create-react-app/blob/master/CHANGELOG.md), find the version you’re currently on (check `package.json` in this folder if you’re not sure), and apply the migration instructions for the newer versions. In most cases bumping the `react-scripts` version in `package.json` and running `npm install` in this folder should be enough, but it’s good to consult the [changelog](https://github.com/facebookincubator/create-react-app/blob/master/CHANGELOG.md) for potential breaking changes. We commit to keeping the breaking changes minimal so you can upgrade `react-scripts` painlessly. ## Sending Feedback We are always open to [your feedback](https://github.com/facebookincubator/create-react-app/issues). ## Folder Structure After creation, your project should look like this: ``` my-app/ README.md index.html favicon.ico node_modules/ package.json src/ App.css App.js index.css index.js logo.svg ``` For the project to build, **these files must exist with exact filenames**: * `index.html` is the page template; * `favicon.ico` is the icon you see in the browser tab; * `src/index.js` is the JavaScript entry point. You can delete or rename the other files. You may create subdirectories inside `src`. For faster rebuilds, only files inside `src` are processed by Webpack. You need to **put any JS and CSS files inside `src`**, or Webpack won’t see them. You can, however, create more top-level directories. They will not be included in the production build so you can use them for things like documentation. ## Available Scripts In the project directory, you can run: ### `npm start` Runs the app in the development mode.<br> Open [http://localhost:3000](http://localhost:3000) to view it in the browser. The page will reload if you make edits.<br> You will also see any lint errors in the console. ### `npm run build` Builds the app for production to the `build` folder.<br> It correctly bundles React in production mode and optimizes the build for the best performance. The build is minified and the filenames include the hashes.<br> Your app is ready to be deployed! ### `npm run eject` **Note: this is a one-way operation. Once you `eject`, you can’t go back!** If you aren’t satisfied with the build tool and configuration choices, you can `eject` at any time. This command will remove the single build dependency from your project. Instead, it will copy all the configuration files and the transitive dependencies (Webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except `eject` will still work, but they will point to the copied scripts so you can tweak them. At this point you’re on your own. You don’t have to ever use `eject`. The curated feature set is suitable for small and middle deployments, and you shouldn’t feel obligated to use this feature. However we understand that this tool wouldn’t be useful if you couldn’t customize it when you are ready for it. ## Displaying Lint Output in the Editor >Note: this feature is available with `react-scripts@0.2.0` and higher. Some editors, including Sublime Text, Atom, and Visual Studio Code, provide plugins for ESLint. They are not required for linting. You should see the linter output right in your terminal as well as the browser console. However, if you prefer the lint results to appear right in your editor, there are some extra steps you can do. You would need to install an ESLint plugin for your editor first. >**A note for Atom `linter-eslint` users** >If you are using the Atom `linter-eslint` plugin, make sure that **Use global ESLint installation** option is checked: ><img src="http://i.imgur.com/yVNNHJM.png" width="300"> Then make sure `package.json` of your project ends with this block: ```js { // ... "eslintConfig": { "extends": "./node_modules/react-scripts/config/eslint.js" } } ``` Projects generated with `react-scripts@0.2.0` and higher should already have it. If you don’t need ESLint integration with your editor, you can safely delete those three lines from your `package.json`. Finally, you will need to install some packages *globally*: ```sh npm install -g eslint babel-eslint eslint-plugin-react eslint-plugin-import eslint-plugin-jsx-a11y eslint-plugin-flowtype ``` We recognize that this is suboptimal, but it is currently required due to the way we hide the ESLint dependency. The ESLint team is already [working on a solution to this](https://github.com/eslint/eslint/issues/3458) so this may become unnecessary in a couple of months. ## Installing a Dependency The generated project includes React and ReactDOM as dependencies. It also includes a set of scripts used by Create React App as a development dependency. You may install other dependencies (for example, React Router) with `npm`: ``` npm install --save <library-name> ``` ## Importing a Component This project setup supports ES6 modules thanks to Babel. While you can still use `require()` and `module.exports`, we encourage you to use [`import` and `export`](http://exploringjs.com/es6/ch_modules.html) instead. For example: ### `Button.js` ```js import React, { Component } from 'react'; class Button extends Component { render() { // ... } } export default Button; // Don’t forget to use export default! ``` ### `DangerButton.js` ```js import React, { Component } from 'react'; import Button from './Button'; // Import a component from another file class DangerButton extends Component { render() { return <Button color="red" />; } } export default DangerButton; ``` Be aware of the [difference between default and named exports](http://stackoverflow.com/questions/36795819/react-native-es-6-when-should-i-use-curly-braces-for-import/36796281#36796281). It is a common source of mistakes. We suggest that you stick to using default imports and exports when a module only exports a single thing (for example, a component). That’s what you get when you use `export default Button` and `import Button from './Button'`. Named exports are useful for utility modules that export several functions. A module may have at most one default export and as many named exports as you like. Learn more about ES6 modules: * [When to use the curly braces?](http://stackoverflow.com/questions/36795819/react-native-es-6-when-should-i-use-curly-braces-for-import/36796281#36796281) * [Exploring ES6: Modules](http://exploringjs.com/es6/ch_modules.html) * [Understanding ES6: Modules](https://leanpub.com/understandinges6/read#leanpub-auto-encapsulating-code-with-modules) ## Adding a Stylesheet This project setup uses [Webpack](https://webpack.github.io/) for handling all assets. Webpack offers a custom way of “extending” the concept of `import` beyond JavaScript. To express that a JavaScript file depends on a CSS file, you need to **import the CSS from the JavaScript file**: ### `Button.css` ```css .Button { padding: 20px; } ``` ### `Button.js` ```js import React, { Component } from 'react'; import './Button.css'; // Tell Webpack that Button.js uses these styles class Button extends Component { render() { // You can use them as regular CSS styles return <div className="Button" />; } } ``` **This is not required for React** but many people find this feature convenient. You can read about the benefits of this approach [here](https://medium.com/seek-ui-engineering/block-element-modifying-your-javascript-components-d7f99fcab52b). However you should be aware that this makes your code less portable to other build tools and environments than Webpack. In development, expressing dependencies this way allows your styles to be reloaded on the fly as you edit them. In production, all CSS files will be concatenated into a single minified `.css` file in the build output. If you are concerned about using Webpack-specific semantics, you can put all your CSS right into `src/index.css`. It would still be imported from `src/index.js`, but you could always remove that import if you later migrate to a different build tool. ## Post-Processing CSS This project setup minifies your CSS and adds vendor prefixes to it automatically through [Autoprefixer](https://github.com/postcss/autoprefixer) so you don’t need to worry about it. For example, this: ```css .App { display: flex; flex-direction: row; align-items: center; } ``` becomes this: ```css .App { display: -webkit-box; display: -ms-flexbox; display: flex; -webkit-box-orient: horizontal; -webkit-box-direction: normal; -ms-flex-direction: row; flex-direction: row; -webkit-box-align: center; -ms-flex-align: center; align-items: center; } ``` There is currently no support for preprocessors such as Less, or for sharing variables across CSS files. ## Adding Images and Fonts With Webpack, using static assets like images and fonts works similarly to CSS. You can **`import` an image right in a JavaScript module**. This tells Webpack to include that image in the bundle. Unlike CSS imports, importing an image or a font gives you a string value. This value is the final image path you can reference in your code. Here is an example: ```js import React from 'react'; import logo from './logo.png'; // Tell Webpack this JS file uses this image console.log(logo); // /logo.84287d09.png function Header() { // Import result is the URL of your image return <img src={logo} alt="Logo" />; } export default function Header; ``` This works in CSS too: ```css .Logo { background-image: url(./logo.png); } ``` Webpack finds all relative module references in CSS (they start with `./`) and replaces them with the final paths from the compiled bundle. If you make a typo or accidentally delete an important file, you will see a compilation error, just like when you import a non-existent JavaScript module. The final filenames in the compiled bundle are generated by Webpack from content hashes. If the file content changes in the future, Webpack will give it a different name in production so you don’t need to worry about long-term caching of assets. Please be advised that this is also a custom feature of Webpack. **It is not required for React** but many people enjoy it (and React Native uses a similar mechanism for images). However it may not be portable to some other environments, such as Node.js and Browserify. If you prefer to reference static assets in a more traditional way outside the module system, please let us know [in this issue](https://github.com/facebookincubator/create-react-app/issues/28), and we will consider support for this. ## Adding Bootstrap You don’t have to use [React Bootstrap](https://react-bootstrap.github.io) together with React but it is a popular library for integrating Bootstrap with React apps. If you need it, you can integrate it with Create React App by following these steps: Install React Bootstrap and Bootstrap from NPM. React Bootstrap does not include Bootstrap CSS so this needs to be installed as well: ``` npm install react-bootstrap --save npm install bootstrap@3 --save ``` Import Bootstrap CSS and optionally Bootstrap theme CSS in the ```src/index.js``` file: ```js import 'bootstrap/dist/css/bootstrap.css'; import 'bootstrap/dist/css/bootstrap-theme.css'; ``` Import required React Bootstrap components within ```src/App.js``` file or your custom component files: ```js import { Navbar, Jumbotron, Button } from 'react-bootstrap'; ``` Now you are ready to use the imported React Bootstrap components within your component hierarchy defined in the render method. Here is an example [`App.js`](https://gist.githubusercontent.com/gaearon/85d8c067f6af1e56277c82d19fd4da7b/raw/6158dd991b67284e9fc8d70b9d973efe87659d72/App.js) redone using React Bootstrap. ## Adding Flow Flow typing is currently [not supported out of the box](https://github.com/facebookincubator/create-react-app/issues/72) with the default `.flowconfig` generated by Flow. If you run it, you might get errors like this: ```js node_modules/fbjs/lib/Deferred.js.flow:60 60: Promise.prototype.done.apply(this._promise, arguments); ^^^^ property `done`. Property not found in 495: declare class Promise<+R> { ^ Promise. See lib: /private/tmp/flow/flowlib_34952d31/core.js:495 node_modules/fbjs/lib/shallowEqual.js.flow:29 29: return x !== 0 || 1 / (x: $FlowIssue) === 1 / (y: $FlowIssue); ^^^^^^^^^^ identifier `$FlowIssue`. Could not resolve name src/App.js:3 3: import logo from './logo.svg'; ^^^^^^^^^^^^ ./logo.svg. Required module not found src/App.js:4 4: import './App.css'; ^^^^^^^^^^^ ./App.css. Required module not found src/index.js:5 5: import './index.css'; ^^^^^^^^^^^^^ ./index.css. Required module not found ``` To fix this, change your `.flowconfig` to look like this: ```ini [libs] ./node_modules/fbjs/flow/lib [options] esproposal.class_static_fields=enable esproposal.class_instance_fields=enable module.name_mapper='^\(.*\)\.css$' -> 'react-scripts/config/flow/css' module.name_mapper='^\(.*\)\.\(jpg\|png\|gif\|eot\|otf\|webp\|svg\|ttf\|woff\|woff2\|mp4\|webm\)$' -> 'react-scripts/config/flow/file' suppress_type=$FlowIssue suppress_type=$FlowFixMe ``` Re-run flow, and you shouldn’t get any extra issues. If you later `eject`, you’ll need to replace `react-scripts` references with the `<PROJECT_ROOT>` placeholder, for example: ```ini module.name_mapper='^\(.*\)\.css$' -> '<PROJECT_ROOT>/config/flow/css' module.name_mapper='^\(.*\)\.\(jpg\|png\|gif\|eot\|otf\|webp\|svg\|ttf\|woff\|woff2\|mp4\|webm\)$' -> '<PROJECT_ROOT>/config/flow/file' ``` We will consider integrating more tightly with Flow in the future so that you don’t have to do this. ## Adding Custom Environment Variables >Note: this feature is available with `react-scripts@0.2.3` and higher. Your project can consume variables declared in your environment as if they were declared locally in your JS files. By default you will have `NODE_ENV` defined for you, and any other environment variables starting with `REACT_APP_`. These environment variables will be defined for you on `process.env`. For example, having an environment variable named `REACT_APP_SECRET_CODE` will be exposed in your JS as `process.env.REACT_APP_SECRET_CODE`, in addition to `process.env.NODE_ENV`. These environment variables can be useful for displaying information conditionally based on where the project is deployed or consuming sensitive data that lives outside of version control. First, you need to have environment variables defined, which can vary between OSes. For example, let's say you wanted to consume a secret defined in the environment inside a `<form>`: ```jsx render() { return ( <div> <small>You are running this application in <b>{process.env.NODE_ENV}</b> mode.</small> <form> <input type="hidden" defaultValue={process.env.REACT_APP_SECRET_CODE} /> </form> </div> ); } ``` The above form is looking for a variable called `REACT_APP_SECRET_CODE` from the environment. In order to consume this value, we need to have it defined in the environment: ### Windows (cmd.exe) ```cmd set REACT_APP_SECRET_CODE=abcdef&&npm start ``` (Note: the lack of whitespace is intentional.) ### Linux, OS X (Bash) ```bash REACT_APP_SECRET_CODE=abcdef npm start ``` > Note: Defining environment variables in this manner is temporary for the life of the shell session. Setting permanent environment variables is outside the scope of these docs. With our environment variable defined, we start the app and consume the values. Remember that the `NODE_ENV` variable will be set for you automatically. When you load the app in the browser and inspect the `<input>`, you will see its value set to `abcdef`, and the bold text will show the environment provided when using `npm start`: ```html <div> <small>You are running this application in <b>development</b> mode.</small> <form> <input type="hidden" value="abcdef" /> </form> </div> ``` Having access to the `NODE_ENV` is also useful for performing actions conditionally: ```js if (process.env.NODE_ENV !== 'production') { analytics.disable(); } ``` ## Integrating with a Node Backend Check out [this tutorial](https://www.fullstackreact.com/articles/using-create-react-app-with-a-server/) for instructions on integrating an app with a Node backend running on another port, and using `fetch()` to access it. You can find the companion GitHub repository [here](https://github.com/fullstackreact/food-lookup-demo). ## Proxying API Requests in Development >Note: this feature is available with `react-scripts@0.2.3` and higher. People often serve the front-end React app from the same host and port as their backend implementation. For example, a production setup might look like this after the app is deployed: ``` / - static server returns index.html with React app /todos - static server returns index.html with React app /api/todos - server handles any /api/* requests using the backend implementation ``` Such setup is **not** required. However, if you **do** have a setup like this, it is convenient to write requests like `fetch('/api/todos')` without worrying about redirecting them to another host or port during development. To tell the development server to proxy any unknown requests to your API server in development, add a `proxy` field to your `package.json`, for example: ```js "proxy": "http://localhost:4000", ``` This way, when you `fetch('/api/todos')` in development, the development server will recognize that it’s not a static asset, and will proxy your request to `http://localhost:4000/api/todos` as a fallback. Conveniently, this avoids [CORS issues](http://stackoverflow.com/questions/21854516/understanding-ajax-cors-and-security-considerations) and error messages like this in development: ``` Fetch API cannot load http://localhost:4000/api/todos. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:3000' is therefore not allowed access. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled. ``` Keep in mind that `proxy` only has effect in development (with `npm start`), and it is up to you to ensure that URLs like `/api/todos` point to the right thing in production. You don’t have to use the `/api` prefix. Any unrecognized request will be redirected to the specified `proxy`. Currently the `proxy` option only handles HTTP requests, and it won’t proxy WebSocket connections. If the `proxy` option is **not** flexible enough for you, alternatively you can: * Enable CORS on your server ([here’s how to do it for Express](http://enable-cors.org/server_expressjs.html)). * Use [environment variables](#adding-custom-environment-variables) to inject the right server host and port into your app. ## Deployment By default, Create React App produces a build assuming your app is hosted at the server root. To override this, specify the `homepage` in your `package.json`, for example: ```js "homepage": "http://mywebsite.com/relativepath", ``` This will let Create React App correctly infer the root path to use in the generated HTML file. ### Now See [this example](https://github.com/xkawi/create-react-app-now) for a zero-configuration single-command deployment with [now](https://zeit.co/now). ### Heroku Use the [Heroku Buildpack for Create React App](https://github.com/mars/create-react-app-buildpack). You can find instructions in [Deploying React with Zero Configuration](https://blog.heroku.com/deploying-react-with-zero-configuration). ### Surge Install the Surge CLI if you haven't already by running `npm install -g surge`. Run the `surge` command and log in you or create a new account. You just need to specify the *build* folder and your custom domain, and you are done. ```sh email: email@domain.com password: ******** project path: /path/to/project/build size: 7 files, 1.8 MB domain: create-react-app.surge.sh upload: [====================] 100%, eta: 0.0s propagate on CDN: [====================] 100% plan: Free users: email@domain.com IP Address: X.X.X.X Success! Project is published and running at create-react-app.surge.sh ``` Note that in order to support routers that use html5 `pushState` API, you may want to rename the `index.html` in your build folder to `200.html` before deploying to Surge. This [ensures that every URL falls back to that file](https://surge.sh/help/adding-a-200-page-for-client-side-routing). ### GitHub Pages >Note: this feature is available with `react-scripts@0.2.0` and higher. Open your `package.json` and add a `homepage` field: ```js "homepage": "http://myusername.github.io/my-app", ``` **The above step is important!** Create React App uses the `homepage` field to determine the root URL in the built HTML file. Now, whenever you run `npm run build`, you will see a cheat sheet with a sequence of commands to deploy to GitHub pages: ```sh git commit -am "Save local changes" git checkout -B gh-pages git add -f build git commit -am "Rebuild website" git filter-branch -f --prune-empty --subdirectory-filter build git push -f origin gh-pages git checkout - ``` You may copy and paste them, or put them into a custom shell script. You may also customize them for another hosting provider. Note that GitHub Pages doesn't support routers that use the HTML5 `pushState` history API under the hood (for example, React Router using `browserHistory`). This is because when there is a fresh page load for a url like `http://user.github.io/todomvc/todos/42`, where `/todos/42` is a frontend route, the GitHub Pages server returns 404 because it knows nothing of `/todos/42`. If you want to add a router to a project hosted on GitHub Pages, here are a couple of solutions: * You could switch from using HTML5 history API to routing with hashes. If you use React Router, you can switch to `hashHistory` for this effect, but the URL will be longer and more verbose (for example, `http://user.github.io/todomvc/#/todos/42?_k=yknaj`). [Read more](https://github.com/reactjs/react-router/blob/master/docs/guides/Histories.md#histories) about different history implementations in React Router. * Alternatively, you can use a trick to teach GitHub Pages to handle 404 by redirecting to your `index.html` page with a special redirect parameter. You would need to add a `404.html` file with the redirection code to the `build` folder before deploying your project, and you’ll need to add code handling the redirect parameter to `index.html`. You can find a detailed explanation of this technique [in this guide](https://github.com/rafrex/spa-github-pages). ## Something Missing? If you have ideas for more “How To” recipes that should be on this page, [let us know](https://github.com/facebookincubator/create-react-app/issues) or [contribute some!](https://github.com/facebookincubator/create-react-app/edit/master/template/README.md)

This is a dynamic website for business purposes. The users can check out the services while interacting with very blissful and beautiful interface. The users can click on the call button from anywhere on the website and directly they would be transferred to the call app where the number is already entered which makes it very much easier for the users to call the company. Then there’s the concept of Time square New York used in this website because Time square correctly signifies the loads and beauty of sign boards at the same time simultaneously. The first page of the website contains a video of Time square and on the other pages the High quality pictures of Time square has been used. The users can read the details of the previous projects of the company and can also read about the services and products that the company is offering to their customers. The users can also demand request on this website after which the company will call them and hence will proceed the deal. This website contains a slide bar in the services and projects menu by which users can smoothly check the services and projects. The website’s been designed fully for every platforms available currently. It is responsive in very possible way and manner which makes this website robust. For the front end part of this websites – HTML, CSS and JAVA SCRIPT has been used and for the backend part NODE.JS has been used. In backend of my website the modules of Express (for serving purpose) has been used. The backend server and data base of Google’s Firebase has been used and all the server part of the work and data base works has been done through there. Firebase Cloud function has been used to serve the website dynamically and this hosting can been done only if we are willing to be a paid user for Firebase. In this website creation no template, bootstrap or any other already coded mechanism has been used. This website has been coded from the scratch and everything in this website is completely manually coded from the scratch .This website is all created with HTML for structuring, CSS for Designing and for additional dynamic functions Java Script has been used. The data base used in it is of Google’s Firebase. Firebase is the best platform for forming a Backend for mobile applications and web application currently across the world. So, every retrieval and fetching of data has been done through Firebase data base and all dynamic data insertion has also been done through that. The hosting of the website has been done also by the firebase server. Media query has been used for making the website responsive for every platform available and every minute details has been taken care off in it. For the background a professional high quality picture has been taken from pexels.com. For the Review Looping part of the website, looping, Time interval function and data retrieval from the Firebase database. For the animation part on scrolling, AOS (Animation on Scroll) has been used. Images and every photos are used in these website with the help of Firebase Storage Functionality, From there only we are fetching the images (of books and blogs) and showing it in here. A pre loader has been used before the starting of website to let the images get loaded properly so that the users do not faces any difficulties For social handling visit purposes, href has been used and for sharing purpose of blog this website has been used - https://sharingbuttons.io/ . The shop section of the website has been coded in a way where the users has to put their information and then that data will be stored in the data base , and from there the company can get connected with that person. For the side bar slider glider package has been used. The clicking appearance of a details box where the information of the products or projects has been created by create Element method of Java script and in that element creation and data fetching is happening at the same time. When we click on the product or project back then we used remove child method of java script to make it normal.

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FOR MVC DEVLEOPERS THE FEAUTURES OF ASP.NET CORE ASP.NET Core 1.0 gives a patched up Web development system adapted towards the prerequisites of present day Web applications. The new structure, as of now in RC1, obliges you to learn numerous new ideas not found in ASP.NET MVC 5. To that end, this article identifies a couple of essential components that ASP.NET MVC 5 designers ought to know as they get ready to take in this new structure. 1. ASP.NET Core on Numerous Runways ASP.NET Core is a piece of .NET Core—another measured structure that backings numerous stages.ASP.NET and the .NET framework are focused on towards the Windows stage. Then again, ASP.NET Core is created to bolster various stages including Windows, Mac, and Linux. This additionally implies, dissimilar to ASP.NET web applications, basically, keep running under IIS, the ASP.NET Core applications can keep running under non-IIS Web servers. Figure 1 demonstrates the part of the .NET Core and ASP.NET Core. The part of the .NET Core and ASP.NET Core - A Web application worked with ASP.NET Core can target ASP.NET Framework 4.6 or the ASP.NET Core. The Web applications focusing on ASP.NET Framework 4.6 run just on the Windows stage. The Web applications focusing on the ASP.NET Core can keep running on Windows and non-Windows stages. Obviously, as on this composition, ASP.NET Core doesn't offer the same rich usefulness offered by ASP.NET Framework 4.6. 2. Part of Project.json ASP.NET Core utilizes an exceptional document—Project.json for putting away all the undertaking level configuration data. Project.config can store numerous design settings, for example, references to NuGet bundles utilized as a part of the task and target structures. "dependencies": { "Microsoft.AspNet.IISPlatformHandler": "1.0.0-rc1-final", "Microsoft.AspNet.Server.Kestrel": "1.0.0-rc1-final", "Microsoft.AspNet.Mvc": "6.0.0-rc1-final", "Microsoft.AspNet.Mvc.TagHelpers": "6.0.0-rc1-final", "Microsoft.AspNet.StaticFiles": "1.0.0-rc1-final", "Microsoft.AspNet.Tooling.Razor": "1.0.0-rc1-final", "Microsoft.Extensions.Configuration.Abstractions": "1.0.0-rc1-final", "Microsoft.Extensions.Configuration.Json": "1.0.0-rc1-final", "EntityFramework.MicrosoftSqlServer": "7.0.0-rc1-final", "EntityFramework.Commands": "7.0.0-rc1-final", "Microsoft.AspNet.Session": "1.0.0-rc1-final", "Newtonsoft.Json": "8.0.3" The Project.json record stores configuration data in JSON position. The above markup demonstrates a conditions segment that contains a rundown of NuGet bundles required by the application. For instance, the Web application under thought requires the 6.0.0-rc1-last form of Microsoft.AspNet.Mvc get together, etc 3. Part of AppSettings.json ASP.NET stores application configuration settings in Web.config. For instance, engineers utilize the <appSettings> area to store custom application settings, the <connectionStrings> segment to store database association strings, etc. ASP.NET Core utilizes AppSettings.json to store such bits of data. Consider the accompanying configuration: { "AppSettings": { "Title": "My ASP.NET Core Application" }, "Data": { "DefaultConnection": { "ConnectionString": "data source=.; initial catalog=Northwind;integrated security=true" } } } The previous JSON markup comprises of two properties or keys, to be specific AppSettings and Data. The AppSettings property holds a sub-key named Title. The Title sub-key has a string estimation of "My ASP.NET Core Application". Also, the Data key has a DefaultConnection sub-key. The DefaultConnection thusly has a ConnectionString sub-key. 4. Application set-up In ASP.NET, Global.asax goes about as the passage point for your application. You can wire different events handlers for occasions, for example, Application_Start and Session_Start, in the Global.asax record. In ASP.NET Core, the application startup happens in an unexpected way—it happens through a Startup class. one such Startup class - public class Startup { public Startup(IHostingEnvironment env, IApplicationEnvironment app) { ConfigurationBuilder builder = new ConfigurationBuilder(); builder.SetBasePath(app.ApplicationBasePath); builder.AddJsonFile("appsettings.json"); IConfigurationRoot config = builder.Build(); string str = config.Get<string> ("Data:DefaultConnection:ConnectionString"); // do something with str } public void ConfigureServices(IServiceCollection services) { services.AddMvc(); services.AddEntityFramework() .AddSqlServer(); } public void Configure(IApplicationBuilder app) { app.UseStaticFiles(); app.UseMvc(routes => { routes.MapRoute( name: "default", template: "{controller=Home}/ {action=Index}/{id?}"); }); } public static void Main(string[] args) => WebApplication.Run<Startup>(args); } The Startup class appeared above starts with a constructor. The constructor stacks the AppSettings.json record utilizing ConfigurationBuilder class. The Get() strategy then is utilized to peruse the database association string put away in the AppSettings.json document. The ConfigureServices() technique includes the administrations required by the application. For instance, here you add MVC and Entity Framework to the administrations gathering. The Configure() technique determines and arranges the administrations included before for application's utilization. For instance, the MVC directing is designed in the code appeared previously. 5. Tag Helpers In ASP.NET MVC 5, you utilized HTML assistants, for example, BeginForm(), LabelFor(), and TextBoxFor() to render structures and frame fields. You can keep on using HTML partners in ASP.NET Core, too. However, there is a superior option: Tag Helpers. Label aides take the type of standard HTML labels with certain extraordinary asp-* credits added to them. Consider the accompanying markup that renders a structure: <form asp-controller="Home" asp-action="Save" method="post"> <table border="1" cellpadding="10"> <tr> <td><label asp-for="FirstName">First Name :</label></td> <td><input type="text" asp-for="FirstName" /></td> </tr> <tr> <td><label asp-for="LastName">Last Name :</label></td> <td><input type="text" asp-for="LastName" /></td> </tr> <tr> <td><label asp-for="Email">Email :</label></td> <td><input type="text" asp-for="Email" /></td> </tr> <tr> <td><label asp-for="Phone">Phone :</label></td> <td><input type="text" asp-for="Phone" /></td> </tr> <tr> <td colspan="2"> <input type="submit" value="Submit" /> </td> </tr> </table> </form> Observe clearly, the properties that start with asp-. They are characterized by the label aides. For instance, the structure label aide utilizes asp-controller ascribe to indicate the objective controller name and asp-activity credit to determine the objective activity technique name. Correspondingly, asp-for traits utilized with name and info label partners tie a name or a text box to a model property. Label partners are more advantageous to use than HTML assistants in light of the fact that their linguistic structure nearly takes after the HTML markup. 6. View Components In MVC 5, you utilized halfway perspectives as a way to reuse markup and code. ASP.NET Core presents View Components, the more intense and adaptable option. A perspective part comprises of a class normally acquired from ViewComponent base class and a perspective record containing the required markup. This programming model is entirely like the one utilized by controllers and perspectives. It permits you to separate code and markup from each other—code in the perspective segment class and markup in a perspective. Once made, you can utilize a perspective segment on a perspective by utilizing the @Component.Invoke() technique. 7. Dependency Injection ASP.NET Core gives an inbuilt reliance infusion system. The DI system of ASP.NET Core offers four-lifetime modes for a sort being infused: Singleton: An object of an administration (the sort to be infused) is made and supplied to all the requests to that administration. Along these lines, fundamentally all requests get the same article to work with. Scoped: An object of an administration is made for every single request. In this way, every request gets another event of an administration to work with. Transient: An object of an administration is made each time an article is asked. Instance: For this situation, you are in charge of making an object of an administration. The DI system then uses that case in singleton mode said prior public void ConfigureServices(IServiceCollection services) { services.AddMvc(); services.AddSingleton<IMyService,MyService>(); } Here, MyService is the sort to be enlisted with the DI structure and actualizes IMyService. The AddSingleton() technique enlists this type for Singleton mode portrayed previously. Once a sort is enrolled with the DI system, you can infuse it in a controller like this: public class HomeController : Controller { private IMyService obj; public HomeController(IMyService obj) { this.obj = obj; } .... .... } 8. Gulp, Grunt, and Bower Support Gulp and Grunt are JavaScript assignment runners. They help you computerize generally required undertakings, for example, packaging JavaScript and CSS records, minifying JavaScript and CSS documents, and arranging Less and Sass records (and some more). They are introduced utilizing npm (Node Package Manager). The ASP.NET Core venture made utilizing Visual Studio 2015 permits you to include Grunt and Gulp arrangement documents furthermore gives Task Runner Explorer to screen the errands. Bower is a bundle administrator basically for front-end bundles. Front-end bundles are the bundles that you use in your Web pages, for example, JavaScript libraries/systems and CSS records. For instance, you may introduce jQuery in your ASP.NET Core venture by utilizing Bower. An ASP.NET Core venture made utilizing Visual Studio 2015 permits you to include a Bower setup document. You likewise can work with the bundles utilizing the Manage Bower Packages menu choice. 9. Single Programming for Web API Model for and MVC In MVC 5, controllers acquire from the System.Web.Mvc.Controller base class. What's more, Web API 2 controllers acquire from System.Web.Http.ApiController. In ASP.NET Core, both of these structures are converged into a solitary system. Therefore, under ASP.NET Core, an MVC controller and Web API controller both acquire from Microsoft.AspNet.Mvc.Controller base class. You then can design viewpoints, for example, HTTP verb mapping and the directing of the controllers as coveted. 10. Static Files and the wwwroot Folder In ASP.NET, there is no settled area for putting away static documents, for example, picture records, JavaScript documents, and CSS records (engineers regularly utilized a Content envelope to store such documents). In ASP.NET Core, all the static records are kept under the wwwroot envelope (default). You likewise can change the name of this envelope by utilizing the Project.json document. Refer the figure following down - After arrangement, the wwwroot turns into the Web application's root. Every one of the URLs to static records are determined as for this envelope. Along these lines,/pictures/logo.png anticipates that logo.png will be available under the wwwroot/pictures envelope. Conclusion - ASP.NET Core 1.0 is a redone system outfitted towards present day cloud based, measured Web applications. Despite the fact that the new structure safeguards the key ideas of MVC 5, ASP.NET engineers will discover numerous contrasts between MVC 5 and ASP.NET Core 1.0. This article specified the imperative new components/ideas that you have to comprehend to start your voyage with ASP.NET Core 1.0.

I'll be posting here all the activities and projects I had to code during my Full Stack Boot Camp at Kenzie Academy so I can show my progress from No Stack to a Full Stack Developer. This repository is meant to act like a diary so no code will be redone even after I learn something new.

I'll be posting here all the activities and projects I had to code during my Full Stack Boot Camp at Kenzie Academy so I can show my progress from No Stack to a Full Stack Developer. This repository is meant to act like a diary so no code will be redone even after I learn something new.