Summary of front-end js framework and explanation of its uses

Today I will introduce to you the summary and usage of the front-end js framework. I have summarized 10 front-end framework libraries. Now I will introduce to you the differences and highlights of these framework libraries one by one.

1. Front-end framework library:

1.Zepto.js

Description: Zepto is a lightweight JavaScript## for modern advanced browsers #Library, it has a similar API to jquery. If you can use jquery, then you can also use zepto. I also learned about Zepto through chatting with a Tencent friend, and only had some basic understanding.

2.SUI Mobile

Description: SUI Mobile is a UI library developed based on Framework7. It is very lightweight and beautiful. You only need to introduce our CDN file to use it. It is compatible with iOS 6.0+ and Android 4.0+, making it very suitable for developing cross-platform Web Apps.

Usage: As you can see, it is used for the development of Web App on the wireless side.

3.Node.Js

Description: Node.js is a Javascript runtime environment (runtime). In fact, it encapsulates the Google V8 engine. The V8 engine executes Javascript very quickly and has very good performance. Node.js optimizes some special use cases and provides alternative APIs to make V8 run better in non-browser environments. Node.js is a platform built on the Chrome JavaScript runtime, which is used to easily build web applications that respond quickly and are easy to expand. Node.js uses an event-driven, non-blocking I/O model to be lightweight and efficient, making it ideal for running data-intensive real-time applications on distributed devices.

Simply put, Node.js is JavaScript running on the server side.

Node.js is a platform built on the Chrome JavaScript runtime.

Node.js is an event-driven I/O server-side JavaScript environment based on Google's V8 engine. The V8 engine executes Javascript very quickly and has very good performance.

Purpose:

1. RESTful API

This is the most ideal application scenario for NodeJS. It can handle tens of thousands of connections. It does not have much logic itself and only requires requests. API, just organize the data and return it. It essentially just looks up some values ​​from some database and composes them into a response. Since responses are small amounts of text and inbound requests are small amounts of text, the traffic is not high and a single machine can handle the API needs of even the busiest companies.

2. Unify the UI layer of Web applications

The current MVC architecture, in a sense, Web development has two UI layers, one is in the browser we finally see , and the other one is on the server side, responsible for generating and splicing pages.

I won’t discuss whether this architecture is good or bad, but there is another practice, the service-oriented architecture, which can better separate the dependencies of the front and back ends. If all key business logic is encapsulated into REST calls, it means that the upper layer only needs to consider how to use these REST interfaces to build specific applications. Those back-end programmers don't have to worry about how specific data is passed from one page to another. They don't have to worry about whether user data updates are obtained asynchronously through Ajax or by refreshing the page.

3. Applications with a large number of Ajax requests

For example, personalized applications, each user sees a different page, the cache is invalid, and Ajax requests need to be initiated when the page is loaded. NodeJS can Respond to a large number of concurrent requests. In short, NodeJS is suitable for use in scenarios with high concurrency, I/O intensive, and a small amount of business logic.

4.angular.Js

Description: AngularJS[1] was born in 2009, created by Misko Hevery and others, and later acquired by Google. It is an excellent front-end JS framework that has been used in many Google products. AngularJS has many features, the most core ones are: MVVM,

Modularization, automated two-way data binding, semantic tags, Dependency Injection and so on.

Purpose: By describing it, we should be able to understand the real purpose of AngularJS, MVVM, modularization, automated two-way data binding, etc. In addition to simple DOM operations, it also reflects the power of Js programming. Of course the application should depend on the occasion.

5.JQuery Mobile

Description: Query Mobile is the version of jQuery on mobile phones and tablet devices. jQuery Mobile will not only bring the jQuery core library to mainstream mobile platforms, but also release a complete and unified jQuery mobile UI framework. Supports global mainstream mobile platforms. The jQuery Mobile development team said: We are very excited to develop this project. The mobile Web needs a cross-browser framework to allow developers to develop truly mobile Web sites.

Purpose: jQuery Mobile is a framework for creating mobile web applications.

jQuery Mobile works on all popular smartphones and tablets.

jQuery Mobile uses HTML5 and CSS3 to lay out pages with as few scripts as possible.

6.requirejs

Description: The goal of RequireJS is to encourage modularization of code. It uses a different approach than traditional

<script> script loading step for tags. You can use it to speed up and optimize code, but its main purpose is to modularize the code. It is encouraged to use the module ID instead of the URL address when using scripts. </script>

RequireJS loads all code with an address relative to baseUrl. The top-level <script> tag of the page contains a special attribute data-main, which is used by require.js to start the script loading process, and baseUrl is generally set to the directory consistent with this attribute. </script>

Purpose: Modular dynamic loading.

7.Vue.js

Description: Vue.js is a library for building interactive web interfaces. It provides MVVM data binding and a composable component system with a simple, flexible API. Technically speaking, Vue.js focuses on the view model layer on the MVVM pattern and connects the view and model through two-way data binding. The actual DOM manipulation and output formatting are abstracted away into directives and filters. Compared to other MVVM frameworks, Vue.js is easier to get started with.

8.backbone.js

Description: Backbone provides a structure for models, collections, and views for complex Javascript applications. The model is used to bind key-value data and custom events; the collection is attached with a rich API of enumerable functions; the view can declare event processing functions and connect to the application through the RESTful JSON interface.

9.React

Description: React is a JavaScript library used by Facebook and Instagram to create user interfaces. Many people think of React as the V (view) in MVC. We created React to solve a problem: building large-scale applications where data changes over time. To achieve this goal, React adopts the following two main ideas.

10.Ionic

Description: Ionic is both a CSS framework and a Javascript UI library. Many components require Javascript to work their magic, although often components require no coding and are easy to use via framework extensions, like our AngularIonic extension.

Ionic follows the view control pattern, and its popular understanding is similar to the Cocoa touch framework. In view control pattern, we divide different parts of the interface into subviews or subviews that contain other viewsController. The view controller then "drives" the inner view to provide interaction and UI functionality. A good example of this is the Tab Bar view controller that handles clicking the tab bar to switch between a series of visual panels.

Browse our API documentation to learn about view controllers and the Javascript utilities available in Ionic.

Ionic is currently the most promising HTML5 mobile application development framework. Build applications with SASS, which provides many UI components to help developers develop powerful applications. It uses JavaScript MVVM framework and AngularJS to enhance the application. Provides two-way binding of data, making its use a common choice for web and mobile developers.

# I believe you have mastered the methods after reading these cases. For more exciting information, please pay attention to other related articles on the php Chinese website!

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