A simple comparison between angular and Angularjs

In this article, let’s briefly compare angular and Angularjs. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.

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Angular related introduction

angular is an open source javaScript maintained by Google. Anguar1.5 is called angularJs, Angular4.0 is called Angular, and Angular1.5 to Angular4.0 is a complete rewrite.

angular is a single-page application and component application. The focus is on building high-reuse components, using TypeScript syntax. It can be said that angularJs has no core. The core of angular is components, and the core of react is virtual DOM.

Comparison between AngularJs and Angular

##Advantages of AngularJs:

The template has powerful and rich functions: reflected in two-way binding
• Relatively complete front-end MVC framework
• Introduces some concepts of Java

Problems with AngularJs:

Performance: reflected in two-way binding, dirty checking, and checking whether it is needed every time the data changes Rebind. Angular has made improvements and does not perform dirty checks by default
• Routing
• Scope: browser and angularjs execution environment isolation
• Form verification: angular uses templates
• javascript language: Angular uses TypeScript syntax developed by Microsoft.
• High learning cost

New features of Angular:

New command line tool AngularCLI
• Server Side RenderingSU
• Mobile and desktop compatibility: cross-platform mobile application support

Architectural differences:

angularJs is a front-end MVC architecture, as shown below:

angular’s ​​architecture: angular is a component architecture, users You can interact with components, components route each other, components and services are called through dependency injection, and services call webSocket to communicate with the server through http.

A simple comparison between Angular and react and vue

Comparison with react ：

Speed: React updates the dom less often, and updates the virtual dom, which is very fast. Angular adopts a new change detection algorithm, which can be said to be on par with react.
• FLUX architecture: es6 syntax support, one-way data update, etc., angular supports it.
• Server-side rendering: The disadvantage of single-page applications is that they have great restrictions on search engines.

react is a UI component that usually needs to be used in combination with other frameworks and is not suitable as a complete framework alone. There are not as many third-party components as Angular.

Comparison with vue:

Advantages of vue:

Simple: Developed by domestic experts, Chinese documentation, easy and fast to get started
• Flexible: Flexible construction
• Performance: Using a virtual dom similar to react, the processing is fast and the performance is very good.

vue disadvantages:

Personal leadership
• Only focus on web: angular can develop web and client applications
Server-side rendering: vue can only be implemented by third-party plug-ins, and angular is supported by the official service segment rendering, which can solve some pain points that the front-end framework cannot solve.

Summary Angular:

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