JavaScript prototype prototype action notes _javascript tips

Copy Code code as follows: var people={name: "Xiong", age:15}; var person=function (user,age) { This.name=user; This.age=age; This.say=function () {alert ("I am" +this.name+ "\ n" +this.age);} //} var chairman=function (name,salary) {

Simple implementation _javascript techniques for JavaScript hash table (Hashtable)

First, briefly introduce some of the methods for attributes: Enumeration of attributes: A for/in loop is a way of traversing an object's properties. Such as Copy Code code as follows: var obj = { Name: ' Obj1 ', AGE:20, Height:

Cutepswheel JavaScript libary Control input text box for the use of the wheel Control JS Library _javascript Tips

Brief introduction Implement an effect similar to the text number entered in the Photoshop Control Panel, so the name is called Pswheel. Used to control the input numeric type text box to implement the mouse wheel sliding up and down to change the

JavaScript Event Learning Chapter III early incident handler _javascript tips

These ancient browsers only support a method of registering event handlers, a method that was invented by Netscape. Because Netscape is preemptive, if Microsoft wants to be a browser that supports JavaScript events, it has to follow Netscape, so

JavaScript event loading and pre-loading _javascript techniques

Normally, window.onload is sufficient, and if you want to load multiple events, we can do the following: Copy Code code as follows: Window.onload = function () { Func1 (); Func2 (); Func3 (); More load events ....... ...... }

JavaScript Learning Notes (vii) string concatenation _javascript Tips

Connection of Strings One, the most commonly used = Always said that this way of efficiency is the lowest, why? You can look at the real process of this approach. var str = "Hello"; str = "World"; (1) Create a string that stores "Hello". (2) Create

JavaScript showmodaldialog modal dialog box using instructions _javascript tips

1. The standard method Copy Code code as follows: Example: click 2. It is to be noted that Firefox does not support this feature, it supports the syntax is Copy Code code as follows: window.open ('

Several methods for writing anonymous functions in JavaScript _javascript tips

Error mode: syntax error warning Copy Code code as follows: function () { Insert code here }(); Mode one: function literal (functions Literal) Declare the function object first, and then execute. Copy Code code as

The encapsulation of JavaScript to Cookie operations summary _javascript Tips

Javascript does not have private, public access to the keyword set, but can be a certain skill to simulate the same results. First let's look at the following line of code: var i = (1, 2, 3, 4, 5); The final result of the variable i is 5. This is

JavaScript array use method Rollup _javascript tips

[Ctrl + A All SELECT Note: If the need to introduce external JS need to refresh to perform]

JavaScript text up and down interval scrolling code compliant with Web Standard script home revision _javascript tips

First text up and down interval scroll correction version compliant with Web Standard text interval scrolling JS code [Ctrl + A All SELECT Note: If the need to introduce external JS need to refresh to perform] There are

JavaScript TabIndex Properties _javascript tips

The use of TabIndex is very simple, is the use of the tab to traverse the page's form elements and links, according to the size of the TabIndex determines the order. Although insignificant, but the details of the real kungfu, this is any Web

JavaScript-Perverted node set _javascript techniques

node collection by Masaki Masaki Masaki Masaki Masaki Masaki [Ctrl + A All SELECT Note: If the need to introduce external JS need to refresh to perform] If you convert nodelist to an array in advance, there is no problem!

The difference _javascript skills of JavaScript instanceof,typeof

Why would the result be false? Copy Code code as follows: You want to distinguish string from string. Acolors[0] is a string value type and certainly not an instance of string. Refer to the following code var acolors = ["Red",

JavaScript This call rule description _javascript Tips

JavaScript function call Rule one (1) Global function call: Copy Code code as follows: function Makearray (arg1, arg2) { return [This, arg1, arg2]; } This is one of the most common ways to define functions. People who

_javascript tips for using Eval functions in JavaScript

The eval () function JavaScript has a number of tips to make programming easier. One of these is the eval () function, which can execute a string as a JavaScript expression. As a small example: Copy Code code as follows: var

JavaScript Seamless scrolling up and down and fixed Gao Dingkuan pause effect (compatible ie/ff) _javascript tips

JavaScript seamlessly scroll up and down Gao Dingkuan Pause effect (compatible IE/FF) javascript seamless up and down rolling Gao Dingkuan pause effect (compatible ie/ff) var $ = function (ID) {return "string" = = typeof ID?

The implementation and application of JavaScript two-dimensional array _javascript skills

Copy Code code as follows: two-dimensional function Binding a select Drop-down menu by declaring a two-dimensional array Copy Code code as follows: Dynamic Change Drop-down Menu content Example

JavaScript using memory function to quickly compute recursive functions _javascript techniques

If there is a Fibonacci sequence to calculate: Copy Code code as follows: var Fibonacci = function (n) { return N }; I'm afraid the number one big browser will collapse, because the operation of the function will have a lot

Description of properties of JavaScript prototype objects _javascript tips

One, what is the prototype property of the object in JavaScript JavaScript, the prototype property of the object that is used to return the reference to the object type prototype. We use the prototype property to provide a set of basic functions

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