vuejs calls the method in the js file: 1. Create a new js file under the assets file; 2. Use "export default {...}" to reference it in the component that needs to use the method.
The operating environment of this article: Windows7 system, Vue2.9.6 version, DELL G3 computer
How does vuejs call the method in the js file ?
How to reference js files in vue
In many components of vue, axios is used to post data, and each component is written with a The post method is also possible, just copy it, but it always feels a bit inconvenient. Wouldn't it be better to write the axios post into a separate js file and then reference it in the required components?
1. Create a new js file under the assets file
Create a new file named webpost.js
import axios from 'axios' //Post方法的封装 function axiosPost(url,params){ return new Promise((resolve, reject) => { axios({ url: url, method: 'post', data: params, headers: { 'Content-Type':'application/json' } }) .then(res=>{ resolve(res.data); }); }); } export { axiosPost }
This needs to specifically quote axios, which is the first line. Then you can use it. The last sentence is very important, otherwise you will not be able to call
in other components. 2. Reference
<script> import {axiosPost} from '../assets/webpost'; export default { }
in the component that needs to use this method. Pay attention to the path of the reference. The content in import {} is the content in the export above.
When using it, you don’t even need this, just axiosPost.
axiosPost(url,params) .then(res=>{ if (res===401){ this.$message.error('哦,对不起,你所输入的用户名或密码有误!'); }else{ }
3. Another way to write js
The following is the re-edited part. In the past few days, I have sorted out the axios part and added an interceptor to bring token verification when requesting the api. There is only one more export, and you can write multiple. The structure is clearer and easier to understand.
import axios from 'axios' //Post方法的封装 export function axiosPost(url,params){ return new Promise((resolve, reject) => { //以下部分是拦截器功能 axios.interceptors.request.use(config=>{ const token=localStorage.getItem('token') if(token){ config.headers.authorization=token } return config },err=>{ }) //下面是正常的 axios({ url: url, method: 'post', data: params, headers: { 'Content-Type':'application/json' } }) .then(res=>{ resolve(res.data); }); }); }
Recommended: "The latest 5 vue.js video tutorial selections"
The above is the detailed content of How to call methods in js files in vuejs. For more information, please follow other related articles on the PHP Chinese website!

Vue.js and React each have their own advantages, and the choice should be based on project requirements and team technology stack. 1. Vue.js is community-friendly, providing rich learning resources, and the ecosystem includes official tools such as VueRouter, which are supported by the official team and the community. 2. The React community is biased towards enterprise applications, with a strong ecosystem, and supports provided by Facebook and its community, and has frequent updates.

Netflix uses React to enhance user experience. 1) React's componentized features help Netflix split complex UI into manageable modules. 2) Virtual DOM optimizes UI updates and improves performance. 3) Combining Redux and GraphQL, Netflix efficiently manages application status and data flow.

Vue.js is a front-end framework, and the back-end framework is used to handle server-side logic. 1) Vue.js focuses on building user interfaces and simplifies development through componentized and responsive data binding. 2) Back-end frameworks such as Express and Django handle HTTP requests, database operations and business logic, and run on the server.

Vue.js is closely integrated with the front-end technology stack to improve development efficiency and user experience. 1) Construction tools: Integrate with Webpack and Rollup to achieve modular development. 2) State management: Integrate with Vuex to manage complex application status. 3) Routing: Integrate with VueRouter to realize single-page application routing. 4) CSS preprocessor: supports Sass and Less to improve style development efficiency.

Netflix chose React to build its user interface because React's component design and virtual DOM mechanism can efficiently handle complex interfaces and frequent updates. 1) Component-based design allows Netflix to break down the interface into manageable widgets, improving development efficiency and code maintainability. 2) The virtual DOM mechanism ensures the smoothness and high performance of the Netflix user interface by minimizing DOM operations.

Vue.js is loved by developers because it is easy to use and powerful. 1) Its responsive data binding system automatically updates the view. 2) The component system improves the reusability and maintainability of the code. 3) Computing properties and listeners enhance the readability and performance of the code. 4) Using VueDevtools and checking for console errors are common debugging techniques. 5) Performance optimization includes the use of key attributes, computed attributes and keep-alive components. 6) Best practices include clear component naming, the use of single-file components and the rational use of life cycle hooks.

Vue.js is a progressive JavaScript framework suitable for building efficient and maintainable front-end applications. Its key features include: 1. Responsive data binding, 2. Component development, 3. Virtual DOM. Through these features, Vue.js simplifies the development process, improves application performance and maintainability, making it very popular in modern web development.

Vue.js and React each have their own advantages and disadvantages, and the choice depends on project requirements and team conditions. 1) Vue.js is suitable for small projects and beginners because of its simplicity and easy to use; 2) React is suitable for large projects and complex UIs because of its rich ecosystem and component design.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Dreamweaver CS6
Visual web development tools

SublimeText3 Chinese version
Chinese version, very easy to use

Notepad++7.3.1
Easy-to-use and free code editor

MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.
