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ES6 let, const keyword let keyword, newly added in ES6. // let can be used to declare variables let x; let x,y,z,i; // let can directly declare and assign initial values let a=1; let q=123,w='123',e=[]; // Note: // 1.let variables cannot be declared repeatedly // (preven ...

preface Sandbox, as the name suggests, is to let your program run in an isolated environment without affecting other programs outside. By creating an independent working environment similar to sandbox, the programs running inside can not have a permanent impact on the hard disk. Usage scenario of sandbox in JS Jsonp: when parsing the jsonp r ...

prefaceHello, I'm Lin Sanxin. As we all know, modifiers are also one of the important components of Vue. Making good use of modifiers can greatly improve the efficiency of development. Next, let's introduce the 13 Vue modifiers that interviewers like to ask1.lazyThe lazy modifier is used to change the value of the input box without changing the ...

prefaceHello, I'm Lin Sanxin. The Mid Autumn Festival is coming. I wish you a Happy Mid Autumn Festival!!! I was thinking, what can I write to share with you about the Mid Autumn Festival? On this day, I was watching journey to the West and suddenly thought of my childhood goddess. Who is it? It is the Chang'e fairy pursued by Marshal Tianpeng. ...

Author: Jose GranjaTranslator: front end XiaozhiSource: mediumThere are dreams and dry goods. Wechat search [Daqian world] pays attention to this bowl washing wisdom who is still washing dishes in the early morning.This article GitHub https://github.com/qq449245884/xiaozhi It has been included. There are complete test sites, materials and my s ...

Daily share: In the cold winter season, learn to say goodbye to the past, follow the past, and see you later. I hope that on the way to the future, we have endless love, such as bright stars and free wind. catalog: Introduction to jQueryjQuery DownloadUse of jQueryjQuery selectorjQuery selection set filteringjQuery selection set transfer 1, ...

Object construction and access 1. Introduction In the last class, we explained the definition of objects and basic display output. In order to better learn some objects provided by subsequent JavaScript, we now begin to learn the construction and access of objects. 2. Object constructor   (1). Construction is generally used when initia ...

Hello, my name is little bald monkThis article is to explain how cloud development can upload, download, preview and delete images, and display the functions of images in a nine house grid@1. Realization effectDon't talk nonsense. Look at the effect firstexplain:In the middle of the pause, I was choosing to upload photos. Click the "x&quot ...

Why write such articles As a programmer, code ability is undoubtedly very, very important. For example, why do big companies basically ask what API to implement in interviews? We can see its importance. What I want to say is that handwriting is so important that we must master it. Therefore, it is not too much to use the title of the arti ...

Fashion Webpack - core concepts of basic articles (2) fashion cloud - CSDN blog fashion Webpack - core concepts of basic articles (2)https://blog.csdn.net/zsx0806/article/details/122198850 Picture from webpack Official website logo   Some methods of loader: css loader - process css files} style loader - insert css into header Less ...