JavaScript

Go beyond Console.log by learning on log levels, filtering log output and structuring your output to be meaningful and Concise. The JavaScript Console object offers many methods to make your life Easier-start learning them here!Console.log ("This

Create a Date object:var objdate=new Date ([arguments list]);The parameters are of the following types:New Date ("2012/11/22 [18:35:00]");New Date ("Month dd,yyyy hh:mm:ss");New Date ("Month dd,yyyy");New Date (YYYY,MTH,DD,HH,MM,SS);New Date

Map ObjectThe Map object is an object with corresponding key/value pairs, and JS object is also a key/value pair.There are several differences in ES6 in the map relative to object objects:1: Objecthas a prototype , that is, he has a default key

A JavaScript object is an unordered collection data type that consists of a number of key pairs.var Guagua = {Name: ' Melon ',birth:1988,School: ' The Middle school ',height:1.70,WEIGHT:65,Score:null};JavaScript with a {...} Represents an object in

Because a few days ago did a promise object to catch the wrong interview topic, so these days again revisit the Promise object. Now take this question to share some very basic knowledge points.Here is an interview topic, three examples of promise

First, the general basic type of JavaScriptThere are five basic types in 1.javascript: Number, String, Boolean, Undefined, nullThe biggest difference between null and undefined is that variables that are given null are usually considered to be

String, the JavaScript string is represented by a character enclosed in "and".character literal, \ n newline, \ t tab, \b Backspace, \ r Enter, \f, \ \ Slash, \ ' single quote ('), \ "Odd Number (")\xnn a character in hexadecimal code nn (where n is

First, object-oriented-ood Although JS object-oriented programming idea has been talk about, but for the sake of the integrity of the article, I still add it in, try to speak in a different way (although there is no egg different).1, object-oriented,

As the site continues to iterate, the JS code is getting more and more, so the problem comes The code is a bit messy Naming conflicts File dependencies more complicated In order to solve these problems, modular development has

First talk about combinatorial inheritance. The most common inheritance method is the combination of inheritance, the biggest problem is that in any case, will call two super-type constructor: one time when the subclass prototype is created, and the

There are three stages in the DOM event flow: The event capture phase, the target stage, and the event bubbling phase. Event capture (dubbed bubbling): The popular understanding is that when a mouse clicks or triggers a DOM event, the browser will

JavaScript Asynchronous ProgrammingChapter one in-depth understanding of JavaScript events1. Javascirpt is generally single-threaded, SetTimeout and setintervalExecutes only when the CPU is idle.var start = new Date; SetTimeout (function () {var end

Quickly solves the problem of cross-domain image of Canvas. toDataURL, For example, when the image address of the page is output locally (Html2Canvas. js), The toDataURL access permission issue may occur due to the cross-origin issue of different

Examples of how to use CSS + JavaScript or pure js to implement translucent masks and css masks CSS + JavaScriptImplementation principle:Create a fully-screen div and use absolute positioning. In this way, it can leave the Document Stream without

HTML Study Notes (2) color system and Study Notes System There are three types of Color Representation for html pages:English Representation,Hexadecimal RepresentationAndDecimal. The color passes through the three primary colorsRed, green, and

Based on the clipBoard. JS plug-in, js achieves cutting, copying, and pasting. jsclipboard. js Abstract: Recently, a project was created, with the following requirement: to implement the function of clicking the button to copy the link, find

JQuery event binding on () and pop-up window implementation code, jquery pop-up window There are usually pop-up windows on the page. Some pop-up windows are dynamically generated, and some are hidden at the bottom of the page. For dynamically

Pure JS Code implements bubble effect, js Code bubble I will not explain it to anyone. Let's sort out the key steps. Key steps: 1. Introduce js files 2. Where bubble effects need to be used 3. Use bubble effect $(window).ready( function()

The example explains the View in the Backbone. js framework of JavaScript, including javascriptbackbone. The View in Backbone is used to reflect the Model in your app. They listen to events and respond accordingly.In the next tutorial, I will not

JQuery sidebar implementation code, jQuery sidebar implementation code First, we will show you how to implement it. If you feel it is your desired effect, please refer to this code. The implementation code is as follows: Expand the side of the