JavaScript

These two days want to add a floating button in the Web page, click the button to scroll to the bottom of the page. on-line Bing searched for a bit, mostly jquery.I want pure JavaScript, have to DIY. Test normal under IE9, 11,maxthon 1.6.7,firefox30,

One (function() { var _ns=function() { } _ns.prototype.alert =function() { console.log (' test '); } Window. NS=new _ns (); }) (

There's a small example of a column in JavaScript, so let's take a look at this article and see what we've learned from this example.(a) source codejavascript column mode Column one Column two Column three Column four < ;/p> Column five

1. Properties of an ObjectThere are two types of properties in ECMAScript: Data properties and accessor properties.1) Data properties: There are 4 properties that describe their behavior. [[writable]]: Indicates whether the value of the

CSS3 tags pages, while CSS3 tags pages We often see similar labels in the upper left or upper right corner of the page, such as page links (most commonly used). Below we will implement a simple tag   The implementation step is to first create a

Javascript this usageIn web projects, Javascript is a dynamic language that must be mastered. Most Javascript-based frameworks cannot do without the basic Javascript usage and principles. This article mainly summarizes the evil this keyword in

[ExtJS5 Study Notes] section 17th adds accodion to the panel component of Extjs5 to become a collapsed navigation bar   Author: sushengmiyan Certificate -------------------------------------------------------------------------------------------------

Transfer of Javascript Date values and references Create a Date variable d1. Var d1 = new Date (); alert (d1 ); After running, the page will pop up: Fri Sep 05 2014 16:40:50 GMT + 0800 Create another variable d2, assign the value of d1 to d2

JS uses the for loop to traverse the child node to find the element, jsfor This article mainly introduces how JS uses a for loop with arrays to traverse the child node to find elements. Function nextChildNode (node, clazz, tagName) {var count = node.

Thoughts on javascript module loading technologyNot long ago, a netizen asked me the question of using requireJs and seajs on the front end. I asked him if your company had prepared your own javascript library or javascript framework, his answer is

In JavaScript, methods that prevent high-frequency triggering and high-frequency calling of event functions, javascript events The most basic function of JavaScript on a webpage is to listen to or respond to user actions, which is very useful. Some

JavaScript and jquey are used to merge multiple arrays. javascriptjquey 1. Native JavaScript implementation var array1 = ["a", "b"];var array2 = ["c", "d"]; I want to merge the data into the following: var array= ["a", "b", "c", "d"]; Available arr1.

AJAX --- use of jQuery (1) I learned about jQuery, because the writing technology will be used when I am doing Web pages, so the benefits will not be mentioned. It is a big push on the Internet! Let me explain my understanding (I learned from W3C,

Several demos about JS control time I. Timing and latency methods included in the Document:Cyclic execution: var timeid = window. setInterval ("method name or method", "latency"); window. clearInterval (timeid );Scheduled execution: var tmid =

Cache jQuery objects to improve performance JQuery makes the choice of elements very simple, which is also a major reason for its rapid popularity. If you look at the code that was just written by jQuery friends, the jQuery selector will be abused

Javascript Dynamic Control Server Control instance, javascript Control Recently, some drop-down lists need to be loaded on multiple pages for the user to choose from. They were originally used for loading on the server. Finally, due to business

The method for javascript to obtain the next dom node, javascriptdom Use javascript to add and subtract numbers on the page. This is probably the case with simple html. I can understand it. Don't care about these details. 0 It looks like this The

Implementation of native JavaScript to generate GUIDGUID (globally unified identifier) refers to the number generated on a machine, which ensures that all machines in the same time and space are unique. Generally, the platform provides APIs for

C # mutual conversion between objects and JSON strings Newtonsoft. Json. dll is required for. Net2.0. Using System; using System. IO; using System. text; using Newtonsoft. json; namespace OfflineAcceptControl. UCTools {public class JsonTools {//

Install node. js npmI didn't plan to introduce the npm installation of node. js, but I found that the management of some node. js packages is implemented through npm. I 'd like to briefly introduce npm.1. What is npm?Npm is a node package management