JavaScript

The Java language in the overloading and rewriting of functions is very important concept, so in the writing JS sometimes think of this usage, rewrite first not to say, here only say overloaded.function Test (one) { alert ("above"function Test (

Most of the readability is related to the indentation of the code, and you must ensure that the code is well-formed. The other side of readability is the comment, in general, there are some places that need to be commented1.1.1 Functions and

Declaring the Person class function person(name, age){num =5;//No this modifier, belongs to class, equivalent to static variable in Java, class directly accesses This. name = name;//has this modifier, belonging to the class object, called by the

The execution Environment (execution context) is one of the most important concepts of javascript, and the execution environment defines the other data that variables or functions have access to, and determines their respective behavior. Each

One, the string object 1, you can use the new operator, to explicitly generate a string object. var sobj = new string(‘abc‘); 2. Strings can be implicitly converted to string objects var sobj =new string(‘abc‘);

The ECMAScript variable may contain values for two different data types: the base type value and the reference type value.Primitive type values refer to simple data segments that are stored in the stack's memory, meaning that this value is

IamlaosongTo use a program to grab data from a Web page, you need to familiarize yourself with the HTML and JavaScript languages, and here's a routine that creates a JSON object in JavaScript, learns and grasps its content, makes a note of the

JavaScript Regular expression Knowledge collation 1. Regular Expression Mind Mapping2. Regular Expressions Common Example 2.1 remove all tags, leaving only innertextvar html = "ruby louvreby test "; var text = Html.replace (//g, ""); alert (text)2.2

Format the date in js Sometimes, the date in js is displayed in the format of yyyy/MM/dd, but I need the format of yyyy-MM-dd Simple and crude direct replace is always not good, or it is still a little rough to splice it through the related methods

CSS positioning: absolute css positioning In CSS, there are four different positioning methods by using the position attribute, which affects the method of element box generation. Meaning of the position property value: Static: static location The

Examples of menu toolbar effects that are foldable on the top of js implementation, js foldable This article describes how js achieves the top-collapsed menu toolbar. Share it with you for your reference. The specific implementation method is as

Js get page window sizeFunction getWinSize (){Var winWidth = null; // widthVar winHeight = null; // heightIf (window. innerWidth)WinWidth = window. innerWidth;Else if (document. body & document. body. clientWidth)WinWidth = document. body.

The closed ad layer is automatically displayed in the lower right corner of jquery. JQuery automatically displays closed floating-tip-layer effects in the lower right corner. This effect can be achieved through the jQuery pop-up layer. If you have

JQUERY simple button rotation selection implementation method, jquery button rotation Selection This article describes how to implement JQUERY simple button rotation selection. Share it with you for your reference. The specific implementation method

Detailed description of LABJS dynamic loading of js files on demand, detailed description of labjs dynamic js LABjs is a small JavaScript tool used to load JavaScript files as needed. Using this tool can improve page performance and avoid loading

JS fireworks based on object-oriented implementation This article mainly introduces the fireworks Effect of JS based on object-oriented implementation, and involves the use of javascript object-oriented technology. For more information, see The

Dynamic Loading of js files as needed To speed up page opening and loading, we often put JS files at the end of the page, but some JavaScript files must be placed at the front of the page, which will increase the page loading time; therefore, the

Introduction and use of js library Modernizr Modernizr is an open-source JS library that makes it easier for designers who develop different levels of experience based on different visitor browsers (referring to differences in support for new

JavaScript reference type-Function The Function type is one of the ECMAScript reference types. It is a familiar Function. Interestingly, in ECMAScript, a function is actually an object. Each Function is a Function-type instance and has attributes

Javascript implements full checkbox selection by binding to aveon All checkbox selection should be a more practical front-end technique. In many cases, we need to click a checkbox and select all the check boxes automatically. In some CMS systems,