JavaScript nested functions point to this object error Solution

Let's look at a piece of JavaScript code nested with two-layer functions:Copy codeThe Code is as follows:Var me = {Name: 'jimbor ',Blog: 'http: // jmedia.cn /',SayMyName: function (){Var pre = 'My name is :';Function displayName (){Alert (pre + this.

Shield right-click, Ctrl + N, Shift + F10, Alt + F4, F11, F5 refresh, and return key

shield right-click, Ctrl + N, Shift + F10, Alt + F4, F11, F5 refresh, and return key shield right-click, Ctrl + N, Shift + F10, Alt + F4, F11, F5 refresh, and return key [Ctrl + A select all Note: If you need to introduce external Js, You need

Summary of QueryString acquisition using js

This article uses regular expressions to match strings in location. search. The three main functions are getQueryString (), getQueryStringByName (name), and getQueryStringByIndex (index) Three main methods: Method Description

Double quotation marks (single quotation marks) nested in parameter passing

Recently learned vml: cakepie. innerHTML = ""Style = 'position: absolute; left:" + (_ left + Height/8) + "px; top:" + (_ top + Height/24) + "px; WIDTH: "+ Height +" px; HEIGHT: "+ Height +" px; rotation: "+ rotates +"; z-index: "+ zIndex +" 'adj = '"

Two useful Javascript tool function code

1. You can write various assignment statements in your work. For example, the most common obj. style. display = "none ";If there are more than one assignment statement, obj. style will be dizzy in a row.The following extend functions in my base. js

Use the JavaScript library or write your own code?

You must decide which of the two methods to write your JavaScript code. To help you make a wise decision which is more suitable for you, we will compare the advantages and disadvantages of the two methods.One disadvantage of using JavaScript

JavaScript judges whether an Object is an Object or an Array.

1. typeof operator. For Function, String, Number, Undefined, and other types of objects, it is fully qualified, but for ArrayCopy codeThe Code is as follows:Var arr = new Array ("1", "2", "3", "4", "5 ");Alert (typeof (arr )); You will receive the

Solution for document. getElementById being null or not an object

1. 'null' is null or not an object: Add the defer = true attribute to it,That is: 2. document. getElementById is null Cause: var titab = document. getElementById ("titletab"); no object retrievedSolution:1. Add alert (titab) under the error

Learn jQuery skills to improve your code

JQuery is so popular and widely used by almost everyone from large companies to personal blogs, because it is quite simple to get started and use, it also provides us with some amazing features that people don't know. I think most jQuery users tend

The second part of Extjs learning notes first recognized the Form of Extjs

The form component in Extjs is Ext. form. basicForm, but the simplest and most commonly used is Ext. form. the FormPanel control inherits from the Panel and has certain interface display control capabilities. It contains a BasicForm object used to

In ten minutes, AutoComplete is created to automatically complete the results code.

. Conventional discussion --- XmlHttpRequestCodeCopy codeThe Code is as follows:Var xmlHttp;Function createXmlHttpRequest (){If (window. ActieveXObject){XmlHttp = new ActieveXObject ("Microsoft. XMLHTTP ");}Else if (window. XMLHttpRequest){XmlHttp =

Implementation of loading different styles on a javascript + css webpage

[Clear requirements] The ult.css sample table shows the default style. At the same time, three custom styles, skin1.css, skin2.css, and skin3.css, were created for multiple types of styles. If default.css is created, and a similar table is loaded,

Ruffy javascript Study Notes

1. javascript prototype: prototype requires a constructor to define object members when implementing object-oriented (such as defining a class, methods are attached to the prototype of the constructor.2. In javascript, prototype of the subclass

Allow FireFox to support the innerText implementation code

Implement the innerText attribute for firefoxA lot of code has been written, forgotten, and written, which is a waste of resources, so I decided to develop the habit of taking notes.Knowledge point:0. Why innerText? Security problems1. Extend

Write undefined for better JavaScript (Part 1)

"Global variables" and "attributes of Global Objects" refer to the same thing, but they are different because they need to be used in combination with the context. I will not explain them in the body; "Declaration" refers to declaring variables

Common Methods for Javascript select drop-down box operations

Copy codeThe Code is as follows:Function AddDropDownList (id, fatherCtl){If (! Document. getElementById (id )){Var ddl = document. createElement ('select ');Ddl. setAttribute ("id", id );If (fatherCtl & document. getElementById (fatherCtl ))Document.

Cookie writing JavaScript code library cookieLibrary. js

/* Cookie Library -- "Night of the Living Cookie" Version (25-Jul-96)2 Association Friends Computer Information Technology Co., Ltd., tu juwen geovindu@163.com exchange with each other3 Written by: Bill Dortch, hIdaho Design 4 The following

Definition and method of classes in javascript (Study Notes in javascript advanced programming)

For the inheritance of classes in javascript, refer to Ruan Yifeng's Blog "design idea of Javascript Inheritance Mechanism. I. Problems Encountered in javascript instantiation: The following describes how to use the example in javascript advanced

Code for adding a mouseenter or mouseleave event to a non-IE browser

First, let's take a look at several event object attributes.TargetIndicates the event source object. Click an element at the innermost layer of the nested element. The element is the target. In IE6/7/8, srcElement is used.CurrentTargetThe element

JQuery-based code for merging adjacent cells with the same text in a table

ONE The generated data table is roughly as follows: Region Region Product Code Product Name Quantity Valid till Validity Period (month) Product batch number

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