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