Programmer Think

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- ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 - ...

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) ...

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 ...