Principle analysis of on-demand loading

brief introductionUnderstand the basic knowledge of Babel plug-in and the internal principle of on-demand loading. I'm no longer afraid of the interviewer asking me the implementation principle of on-demand loading.import { Button } from 'element-ui'How did it becomevar Button = require('element-ui/lib/button.js') require('element-ui/lib/theme- ...

Posted by TheVoice on Wed, 09 Feb 2022 09:13:07 +0100

qiankun 2.x runtime sandbox source code analysis

brief introductionThe implementation principle of JS sandbox and style sandbox in qiankun framework is explained in detail from the source code level.prefaceThe word sandbox must be familiar to everyone. Even if it is strange, it will not be so strange after reading this articleSandboxie, also known as sandbox, is a virtual system program that ...

Posted by php new bie on Mon, 07 Feb 2022 05:09:38 +0100

[front end] ES6 Promise object

Promise meaning Promise is a solution for asynchronous programming. Promise is simply a container that holds the results of an event (usually an asynchronous operation) that will not end in the future. Syntactically speaking, Promise is an object from which you can get the message of asynchronous operation. Promise provides a unified API, and ...

Posted by AliceH on Sat, 05 Feb 2022 10:49:52 +0100

Wechat applet like function

Recently, I was working on a simple posting applet, which involves the like function. At first, I thought it was very simple. Later, I found that the difficulty lies in how to record the user's like status of the article, so as to avoid the failure of the like status when I open it next time. Let's start with the renderings: After Baidu for h ...

Posted by Stickybomb on Thu, 03 Feb 2022 00:32:19 +0100

How to write more beautiful and clean JavaScript conditional statements

Transferred from: Micro reading  https://www.weidianyuedu.com/content/2317459000818.html When using JavaScript, we often have to write a lot of conditional statements. Here are five tips for writing cleaner and more beautiful conditional statements. 1. Use array Includes to handle multiple conditions Take chestnuts for example: // Condit ...

Posted by burge124 on Tue, 01 Feb 2022 12:21:48 +0100

ES6 new feature 5 -- > value

Representation of values New writing of binary representation: prefix 0b or 0b. console.log(0b11 === 3); // true console.log(0B11 === 3); // true New writing of octal notation: prefix 0o or 0o. console.log(0o11 === 9); // true console.log(0O11 === 9); // true constant Number. The epsilon property indicates the difference between 1 and t ...

Posted by torvald_helmer on Tue, 01 Feb 2022 09:08:27 +0100

ES6 new feature 6 -- > object

Object Literal Concise representation of attributes ES6 allows the attributes of objects to write variables directly. At this time, the attribute name is the variable name and the attribute value is the variable value. const age = 12; const name = "Amy"; const person = {age, name}; person //{age: 12, name: "Amy"} //Equivalent to const per ...

Posted by darknuke on Tue, 01 Feb 2022 01:29:05 +0100

Dark horse headline project - Vue-day9 - Article Details module, follow and cancel follow, praise and like functions

Article details module Configure article detail routing Objective: configure article detail component routing Routing configuration import Detail from '@/views/detail/index.vue' { path: '/detail', component: Detail } Control route jump <!-- van-cell The component supports route jump, similar to router-link Tagged to attribute - ...

Posted by pauleth on Sun, 30 Jan 2022 21:53:38 +0100

Use of foreach, map, filter, reduce, find, some and every methods in js array

1, Array prototype. forEach() No return value This method traverses each item in the array and executes the given function once for each element of the array. The forEach method cannot modify array items, but the original array can be modified through the index of the array. Sample code const arr = [1,2,3] arr.forEach((value,index,array) ...

Posted by chronister on Fri, 28 Jan 2022 07:55:43 +0100

odoo technology development white paper Part III Chapter 11 abstract fields

Reprint: http://book.odoomommy.com/chapter3/README11.html Chapter 11 abstract fields Abstract field is the abstract basis of field components used in all views. These are common components in views, especially forms and tree lists. The main function of the field component is to render the visual elements of the current value of the field in ...

Posted by sandsquid on Fri, 28 Jan 2022 06:32:22 +0100