JavaScript

this series as effective JavaScript 's reading notes. The so-called immediate invocation of the function expression, this translation may not be very accurate, it corresponds to the original English is Immediately invoked Function Expression (iife) .

As mentioned earlier, a function object can be passed as a parameter to another function, when the function as a parameter is executed internally, then it is a callback function (Callback):function Writecode (callback) { //do something ...

The scope of a variable To understand closures, you must first understand the special variable scope of JavaScript. The scope of a variable is nothing more than two kinds: global variables and local variables. The special point of the JavaScript

Title 17:read The following JavaScript code:var sometext= "web2.0. net2.0";var pattern=/(\w+) (\d) \. (\d)/g;var outcome_exec=pattern.exec (Sometext);var outcome_matc=sometext.match (pattern);What is outcome_exec[1] and outcome_matc[1]?Choice

The six data types that are common in JS are: string, NULL, number, Boolean, type Object.1, typeof Point of attentionWhen it comes to data types, it inevitably mentions that the operator typeof. Be aware that:1, typeof is an operator, not a method.

= = = Scope ======var color = "Blue";/*function ChangeColor () {if (color== "blue") {color = "red";} Else{color= "Yellow";}} ChangeColor (); alert ("Color is now" +color);//Output Color is now Red*///====object type ======//One, there are two ways

Focus: http://www.javascriptkit.com/Create an object:var car = new Object ();Car.colour = ' red ';Car.wheels = 4;Car.hubcaps = ' spinning ';Car.age = 4;The same can acchieved with:var car = {Colour: ' Red ',Wheels:4,Hubcaps: ' Spinning ',Age:4}Note:

When I first started using JS, I felt that the language was so simple. Very fast to use. But when I ask myself, the essence of JS, where the characteristics, just don't need to define the type,You don't need to manage your own memory. The initial

Do you consider writing a frame of your own when this JS framework is running around? The following may be a bit helpful.What should a framework contain?1. Language extensionsMost of the existing frameworks provide this, and the language extension

When writing jquery code today, alert () always appears garbled in ChinesePondering for a while, the information on the Internet is the HTML page set charset to GB2312charset= "GB2312"/>http-equiv = "Content-type" content = "text/html; charset=gb2312

__proto__ of all constructors/functions point to Function.prototype, which is an empty function 123456789 Number.__proto__ === Function.prototype  // trueBoolean.__proto__ === Function.prototype // trueString.__proto__ ===

First, what is an event! (interpretation by the consortium)Events are behaviors that can be detected by JavaScript.JavaScript gives us the ability to create dynamic pages. Events are behaviors that can be detected by JavaScript.Each element in a Web

Analysis of join (), reverse () and split () functions in js Analysis of join (), reverse () and split () functions in js Knowledge Development: 3. Sort () method The sort () method is used to sort the elements of an array. Syntax: arrayObject.

Summary of common functions and features of the infinite tree Jquery plug-in zTree, jqueryztree In fact, the Ztree official website already has a detailed API documentation. Everything is subject to the instructions on the official website. Here I

Collection of common NodeJS modules It collects some common modules in NodeJS development.MVC Framework-Express Express is a lightweight and flexible Nodejs Web application framework that can quickly build websites. The Express framework is built on

Overwrite window. location and determine whether location is overwritten. Window in IE. lcoation can be rewritten without re-targeting. The specific method is var location = {}, and then the specific attribute can be rewritten, which brings a

How does js overwrite the original method and overwrite the original method? Note: After overwriting myblur (), the cursor selects the input box again and then leaves Objective: To improve the calling method. If you have made an editor

Js notes (11) -- browse the study notes of Uncle TOM's blog part11. preface in the past two days, I took a look at the basic part of Uncle TOM's deep understanding of the js series. According to my actual situation, I made Reading Notes and recorded

Native js achieves copying objects, extension objects are similar to the extend () method in jquery, jqueryextend The extend () method of jq can easily implement the extension object method. The syntax is as follows: $. extend (obj1, boj2, obj3

10 JavaScript-based WYSIWYG editors, javascriptwysiwyg Comsharp cms writes: When editing content online, those JavaScript-based editors helped us a lot. These WYSIWYG editors provide us with a similar Office operation experience. Today, any website