What is the difference between Angular and Vue.js? An in-depth comparison between Angular and Vue.js

Related tutorial recommendations: "angular tutorial", "vue.js tutorial"

Vue. js is an open source JavaScript framework that can help developers build beautiful web interfaces. The excellent features of Vue.js are greatly enhanced when used in conjunction with other network tools. Today, many developers have begun to use Vue.js to replace Angular and React.js.

So how should developers choose between Angular and React.js?

Below we will introduce and compare these two frameworks in depth.

Vuejs was developed by former Google employee Evan You and released in 2014. It has now received more than 57,000 GitHub stars . Many developers highly recommend Vue because it is easy to learn. If you have a strong foundation in HTML, CSS, and JavaScript, learning Vue.js only takes a few hours.

The most attractive thing about Vue to developers is its novelty, lightness, and little to no complexity. Vue is not only very flexible and simple, but also very powerful. It also provides two-way data binding functions, just like the virtual DOM functions of Angular and React.

Vue helps developers build applications any way they want, which Angular cannot.

Vue.js - Diverse JavaScript Framework

As a cross-platform, highly progressive framework, Vue has become a must-have for many developers. The first choice for developers of single page applications. In a typical MVC architecture for developing web applications, Vue acts as a View, meaning it allows developers to see the displayed portion of the data. In addition to the basic functions mentioned above, Vue has many other excellent functions.

Let’s take a look at these:

1. Easy to use

If you’ve been If you use other frameworks, you can easily use Vue. Because Vue's core library focuses on the View layer, you can easily integrate it with third-party libraries and use it with existing projects.

2. Lightweight

Since Vue mainly focuses on ViewModel or two-way data binding, Vue is very lightweight. Vue also has very basic documentation. Vue is used as a View layer, which means developers can use it as a highlight feature on the page. Vue provides a better choice than a comprehensive SPA.

3. The learning curve is very low

Developers who are familiar with HTML will find that the learning curve of Vue is very low, and for those with less experience Developers and beginners can also quickly learn and understand Vue.

4. Two-way binding

Vue provides the v-model directive (used to update the data of user input events), so that in the form Implementing two-way binding on input and structure elements becomes easy. It can choose the correct way to update input type related elements.

5. Virtual DOM

Since Vue is a lightweight virtual DOM implementation based on Snabbdom , the performance of Vue has been slightly improved. This is one of the major new features of Virtual DOM, which can be updated directly by developers. You only need to execute such an update function once when you need to make changes in the actual DOM.

6. HTML template-based syntax

Vue allows developers to directly bind the rendered DOM to the underlying Vue instance data. This is a useful feature because it allows developers to extend basic HTML elements to save reusable code.

Angular: Dynamic Framework

Angular is a fully functional framework that supports the Model-View-Controller programming structure and is very suitable for building dynamic Single page web application.

Google developed and supports Angular in 2009. Angular includes a JS code library based on standard JavaScript and HTML. Angular was originally designed as a tool that enables designers to interact with both the backend and frontend.

Here are some of the best features of Angular:

1. Model-View-ViewModel (MVVM)

To build client-side web applications, Angular combines the fundamental principles behind the original MVC software design pattern. However, Angular does not implement MVC in the traditional sense, but implements MVVM, the Model-View-ViewModel pattern.

2. Dependency Injection

Angular comes with built-in dependency injection subsystem functionality, which makes applications easy to develop and test. Dependency injection allows developers to obtain dependencies by requesting them instead of searching for them. This is very helpful for developers.

3. Testing

In Angular, controllers and directives can be unit tested separately. Angular allows developers to have end-to-end and unit test runner setups, which means testing from the user perspective can also be done.

4. Cross-browser compatibility

An interesting feature of Angular is that applications written in the framework can be used in multiple browsers Running well. Angular automatically handles the code required by each browser.

5. Directives

Angular directives (DOM templates used to render directives) can be used to create custom HTML markup. These are tags on DOM elements because developers can extend the directive vocabulary and make their own directives, or convert them into reusable components.

6. Deep Linking

Since Angular is mainly used to make single-page applications, you must take advantage of the Deep Linking feature to be on the same page Load child template. The purpose of Deep Linking is to look at the location URL and arrange for it to map to the current state of the page.

The Deep Linking feature sets the URL by looking at the page status and taking the user to specific content instead of traversing the application from the home page. Deep Linking allows all major search engines to easily search web applications.

Vue.js vs. Angular--Which one is best?

Which framework is best - Angular or Vue? Let’s delve into it through the following points:

Learning Curve

In terms of learning curve, Vue.js is relatively simple to learn and understand. , while Angular takes time to get used to. Developers feel that both frameworks are great for projects, but most of them prefer to use Vue because Vue is simpler and scales well when Vuex is added to the project.

Although some of the syntax of Vue and Angular are similar, such as API and design (this is because Vue is actually inspired by Angular’s ​​early development stages), Vue has always been committed to Improve yourself in areas that are difficult for Angular. Developers can build an ad hoc application with Vue.js in a few hours, but this is not possible with Angular.

Flexibility

Angular is self-contained, which means your application should be structured a certain way. Vue is even broader. Vue provides a modular, flexible solution for creating applications.

Many times, Vue is considered a library rather than a framework. By default, Vue does not include routers, HTTP request services, etc. Developers must install the required "plug-ins". Vue is very flexible and compatible with most libraries that developers want to use.

However, there are developers who prefer Angular as it provides support for the overall structure of their applications. This helps save coding time.

Document Object Model (DOM)

Vue pre-compiles templates into pure JavaScript with minimal component re-rendering. This virtual DOM allows for a lot of optimizations, which is the main difference between Vue and Angular. Vue allows for a simpler programming model, while Angular manipulates the DOM in a cross-browser compatible way.

Speed/Performance

Although Angular and Vue both provide high performance, Vue's virtual DOM implementation is lighter in weight , so it can be said that Vue's speed/performance is slightly ahead.

A simpler programming model enables Vue to provide better performance. Vue can be used without a build system because developers can include it in HTML files. This makes Vue easier to use, which improves performance.

#The reason Angular can be slow is that it uses dirty data checking, which means Angularmonitors are constantly looking to see if variables have changed.

Two-way data binding

Both frameworks support two-way data binding, but compared with Vue.js, Angular’s ​​two-way Binding is more complex. Two-way data binding in Vue is very simple, and in Angular, data binding is even simpler.

When to choose Vue.js?

If you want to make web applications in the simplest way, then you should choose Vue. If your Javascript foundation is not too strong, or you have strict development deadlines, Vue would be a good choice.

If your front-end is Laravel, then please choose Vue. Developers in the Laravel community consider Vue to be their favorite framework. Vue reduces total processing time by 50% and frees up space on the server.

If you are developing a small-scale application or do not like to be constrained during development, please choose Vue.

If you are familiar with ES5 Javascript and HTML, then please use Vue to complete your project.

If you want the simplicity of compiling templates in the browser and using them, using a standalone version of Vue would be fine.

Vue’s single-file components are perfect if you’re planning to build a performance-critical SPA or need feature-wide CSS.

When to choose Angular?

If you need to build large and complex applications, then you should choose Angular because Angular provides a complete and comprehensive solution for client application development.

Angular is a good choice for developers who want to deal with both client-side and server-side modes. The main reason why developers love Angular is that it enables them to focus on any kind of design, whether it's jQuery calls or DOM configuration interference.

Angular is also suitable for developers creating web applications with multiple components and complex requirements. When you choose Angular, local developers will find it easier to understand the application functionality and coding structure.

If you want to select an existing component in a new project, you can also choose Angular since you can just copy and paste the code.

Angular can use the two-way data binding feature to manage synchronization between the DOM and the model. This makes Angular a powerful tool for web application development.

Developers who want to make lighter and faster web applications can take advantage of the MVC structure and independent logic and data components in Angular, which helps speed up the development process.

Code Comparison

It is interesting to analyze the code of Vue and Angular. Code containing markup, styles, and behaviors helps developers build efficient and reusable interfaces. In Angular, entities like controllers and directives are contained in modules, while Vue’s modules contain component logic.

Vue Component

  Vue.extend({ 
    data: function(){ return {...} }, 
    created: function() {...}, 
    ready: function() {...}, 
    components: {...}, 
    methods: {...}, 
    watch: {...} 
    //(other props excluded) });

Angular Module

angular.module(‘myModule’, […]);

Directives in Angular are more powerful.

Vue Directive

Vue.directive('my-directive', {
       bind: function () {...}, 
      update: function (newValue, oldValue) {...}, 
      unbind: function () {...}
  });

Angular Directive

myModule.directive('directiveName', function (injectables) { 
      return { 
            restrict: 'A', 
            template: '<div></div>', 
            controller: function() { ... },
             compile: function() {...},
             link: function() { ... } 
            //(other props excluded) };
            });

Since Vue.js is inspired by Angular, it also borrows Angular’s ​​template syntax. Hence the syntax for loops, interpolation and conditionals are very similar in both frameworks.

The code snippet is given below:

Vue Interpolation

{{myVariable}}

Corner interpolation

{{myVariable}}

Vue Loop

<li v-repeat="items" class="item-{{$index}}">{{myProperty}}</li>

Angular 循环

<li ng-repeat="item in items" class="item-{{$index}}"> {{item.myProperty}}</li>

Vue 条件

<div v-if="myVar"></div>
<div v-show="myVar"></div

角度条件

<div ng-if="myVar"></div>
<div ng-show="myVar"></div>

Vue.js 的编码使得页面渲染变得非常简单。事实上，Vue.js 更像是一个库而不是框架，因为它不提供 Angular 的所有功能。开发者将不得不依赖 Vue.js 的第三方代码，而 Angular 提供了 HTTP 请求服务或路由器等功能。

结论

Vue.js 是轻量级的开发框架，很适合开发小规模灵活的 Web 应用程序；而 Angular 尽管学习曲线较为陡峭，但却是构建完整复杂应用的好选择。

（学习视频分享：web前端开发、编程基础视频）

The above is the detailed content of What is the difference between Angular and Vue.js? An in-depth comparison between Angular and Vue.js. For more information, please follow other related articles on the PHP Chinese website!