JavaScript

When writing Javascirpt code, the two operators, typeof and Instanceof, are used every now and then, which is necessary. But! The use of them is always not directly to get the desired results, very tangled, the general argument that "these two

JavaScript does not support real classes in languages like Java, C #, and so on. However, in JS can be defined pseudo class. The tool to do this is the constructor and the prototype object. First, the constructor in JS is introduced. The syntax for

In this technical forum, for everyone to write a I think of JS. HoHo JavaScript seems to have always been interpreted as a scripting language, and program developers tend to look at it. Think of a script is not too much difficulty, it seems to do

Native JavaScript code written in 2048 games. It is recommended to run under Google Browser. 2048.html Copy Code code as follows: 2048 tap to start:-) 2048.css Copy Code code as follows:

The example in this article summarizes the way JavaScript sets the text box cursor. Share to everyone for your reference, specific as follows: For text Get cursor position function Getcaret (textbox) { var control = document.activeelement;

Last Thursday after lunch, leader sent a JavaScript topic for us to do, our team has to do the front-end, have to do backstage, also have to sit mobile web, so everyone's understanding of the topic is different, and then in the QQ discussion group

JavaScript is quite casual compared to other programming languages, so the JavaScript code is full of all kinds of exotic work, and sometimes, of course, understanding the various types of writing is a further insight into JavaScript language

One, variable When it comes to the delete operator in JavaScript, it's a matter of first figuring out the relationship between variables and attributes in JavaScript. In JavaScript, variables and object attributes are very subtle and can be

~: Bitwise non-operator is represented by a wavy line (~), and the result of performing a bitwise non is the inverse code of the return value. Copy Code code as follows: var num1 = 3; My lucky number is 3. var num2 = ~ (NUM1);

Avalon is a front-end MVVM framework that completely divides all the front-end code into two parts, and the processing of the view is implemented by binding (angular has a cooler noun call), and business logic is concentrated in an object called a

Recently, when I was doing mobile web, I was successful with chrome debugging on my PC, but there were strange problems with the real machine on the iphone. After a series of debugging found that the date is related to the problem. It was initially

The first is to distinguish between two concepts, one is anonymous function , the other is closure . The anonymous function is to create a function without a given function name. Often, including function expressions, you define an anonymous

Property:1Attributes Storage node's list of properties (read-only)2childNodes Storage node List of child nodes (read only)3dataType returns the data type of this node4Definition definition of a node given in a DTD or XML schema (read-only)5Doctype

JavaScript form authentication Age JavaScript form validation age, to determine whether an input is in line with age, implemented through regular expressions. Check Age function Isage (str) { var mydate=new Date; var now=mydate.getfullyear (); if

We've already covered speed animations, transparency animations, multiple object motions, and arbitrary value changes, and we've covered a simple prototype of the plugin in JavaScript animation (b), and we're going to expand on the previous

1.document.formname.item ("ItemName") problemNote: Under IE, you can use Document.formName.item ("ItemName") or document.formname.elements["elementname"]; Firefox, you can only use the document.formname.elements["ElementName"].Workaround: Unify the

1. In Flex, ActionScript calls JavaScript is relatively simple, and plainly is, in HTML, how to invoke JavaScript, in ActionScript on how to call on the 2. If you use JS to call as, a little trouble, in fact, is relatively simple Mxml Code:

Get an array of characters String.prototype.tochararray=function () { Return This.split (""); } Get n the same string String.prototype.repeat=function (num) { var tmparr=[]; for (Var i=0;iReturn Tmparr.join

First of all, take a look at these three words: Without defer or async, the browser will immediately load and execute the specified script, "immediate" means before the document element that is rendered under the script tag, that is,

One, what is DOM? What do you mean Dom,dom is the Document Object model, a set of API interfaces that are based on browser programming (in this tutorial, DHTML programming), the recommended standards for the Web, and each browser has some subtle