JavaScript

Use JavaScript to implement a small game of scissors and stone clothSimple parsing:The principle of scissors and stone cloth is similar to the comparison of the numbers in an array, of course, we can use the corresponding numbers to represent the

1. Basic methods:Push: Adding a return value to the end of the array is the new length of the arrayUnshift: Adding a return value to the beginning of the array is the new length of the arrayPop: Delete the end item of an array the return value is a

We'll learn how to convert variable arguments by using rest operator in JavaScript.. sass-btn { color: #fff; Background-color: #0069d9; margin:5px; @include button-size (); @include box-shadow (0px 4px 5px #666, 2px 6px 10px #999);} @mixin

The API has changed a lot since the ArcGIS API for JavaScript 4.X version was upgraded.Which supported the Webearth display, mainly through the Esri/views/sceneview implementation.In the new version, ESRI's own maps are loaded by default.If you want

One, closed packageClosures (closure) are a difficult and unique feature of the JavaScript language, and many advanced applications rely on closures.Closures have three properties:1. function nesting function;2. External parameters and variables can

JavascriptReserved Keywords In JavaScript, some identifiers are reserved keywords and cannot be used as variable names or function names. JavaScript StandardAll modern browsers fully support ECMAScript 3 (the third edition of

1, timestamp to date format:　　1 functionTimestamptotime (timestamp) {2 varDate =NewDate (timestamp * 1000);//The timestamp is 10-bit *1000 and the timestamp is 13-bit, so you don't need to multiply3Y = date.getfullyear () + '-';4M =

1. Verify the form is not emptyvar hasform = {"name": "Name","Id_card": "Identity card", "Paysalary": "Monthly Salary","Cardcode": "Account", "Fk_subjectf_code": "Functional Account","Birthday": "Date of birth", "start_date": "Start Time"};var

Code:var Base64 = {//transcoding tables table: [' A ', ' B ', ' C ', ' D ', ' E ', ' F ', ' G ', ' H ', ' I ', ' J ', ' K ', ' L ', ' M ', ' N ', ' O ', ' P ' , ' Q ', ' R ', ' S ', ' T ', ' U ', ' V ', ' W ', ' X ', ' Y ', ' Z ', ' A ', ' B ', ' C

Recently made an upload progress bar module, need to get the return URL, but helpless, obtained is garbled, so on the server side of the return URL to encode encoding, and then decoding in JS, a start to use is decodeURI (), as shown, found that

Events are often triggered by actions or by browser functions, and the elements can also be triggered by JavaScript. Events are triggered by JavaScript, also known as simulations of events. Event simulation in DOM The event object can

I. separate judgment1 varA=NULL;2 //var a=undefined;3 //var a= ';4 //var a= ' DD ';5 if(!a&&typeofA = = ' object '){6Console.log (' A is null '))7}Else if(!a&&typeofA = = ' undefined '){8Console.log (' A is undefined ')9}Else if(!a&&typeofA = = '

Detailed description of encryption operations in nodejs and nodejs This document describes how to encrypt passwords in nodejs. We will share this with you for your reference. The details are as follows: I. AboutnodeEncryption

Javascript native encapsulates a function test instance code for fade-in and fade-out. When it comes to js gradient display and disappearance, most of my friends will think of fadeIn (), fadeOut (), or fadeToggle () in JQuery (). But if we call a

Create-react-app slow project construction solution, Slow create-react-app Solution When operating the Create React App on an official instance, run the following command: Create-react-app my-app Create a new React application. For some reason,

The applet implements the skin replacement function and the applet skin replacement It is relatively simple to enable the skin replacement function on PCs or mobile terminals, that is, the css that requires skin replacement, and the normal css; Save

Vue-star component development instance, vue-star instance Create a star. vue and related image information in the Star folder. Easy nearby maintenance of components Star. vue: Header. vue: Mixin. styl: bg-image($url) background-image: url(

The Automatic Generator method is used in ionic2. The ionic2 generator method Ionic generator is a command line function. ionic2 automatically helps us create applications, saving a lot of time and increasing our speed to develop a key part of a

Use ngrok + express to solve interface debugging problems in the local environment, ngrokexpress During project development, you often need to debug interfaces provided by jssdk, such as recording, sharing, and uploading images, however, jssdk

Solve the problem that Webpack hot deployment cannot detect file changes. Today, when I was using Webpack for development, I suddenly found that the hot deployment feature is not working after the file changes. It seems that webpack cannot detect