JavaScript

There are several situations where this is pointed: Global object (pointing to window); As a normal function call (point to window); Called as an object method (typically pointing to the object); Constructor calls (typically

/*Constructor propertyThe constructor property returns the constructor for all JavaScript variables.*/Console.log ("John". constructor); Returns the function String () {[native code]}Console.log ((3.14). constructor); return function number ()

One: JS only object, no class (but there are constructors)JS is Object-based, not object-orientedThe object in JS does not depend on class existenceThe object in JS is just an "attribute dictionary" that can be created directly, without the need for

begins Before I knew about the prototype chain and the prototype object in JS, I always used the official (I don't know) explanation to describe the prototype chain and the prototype object whenever someone asked me. It's a good thing to

In JS, single and double quotation marks can be used as delimiters of strings, especially in the described string.When double quotation marks are to be displayed, single quotation marks can be used as delimiters of the string directlyEg: ' This was

Properties of Window Properties Description Closed Gets whether the reference window is closed. Defaultstatus Sets or gets the default information to display on the status bar at the bottom of

Conversion of data Types This article is from "Spring!" "Blog, be sure to keep this provenance http://11180930.blog.51cto.com/11170930/1834400JavaScript: Chapter Fourth conversion of data types 2

Several implementation methods of JavaScript object-orientedFactory mode1 functioncreateblog (name, URL) {2 varo =NewObject ();3O.name =name;4O.url =URL;5O.sayurl=function() {6Alert This. URL);7 }8 returno;9 }Ten varBlog1 = Createblog ('

There are two modes of exec (array type) and test (Boolean type) ↓↓Creating ObjectsThe second parameter has a i,g,m. They are case-insensitive, global-match, and multi-line matching, respectively.var patten = new RegExp (' ABCDE ', ' I ');var str = "

This is a keyword in the JavaScript language.It represents an internal object that is automatically generated when the function is run, and can only be used inside the function. Like what function Test () { this.x = 1; } The

First, IntroductionWe introduced a lot of APIs about built-in objects, so if you want to master that, you have to go through a certain section of code to precipitate. As you can imagine, since there are a lot of built-in objects in the program for

The DOM level 0 event handler and the DOM2 event handler IE event handler are encapsulated as Eventutil objects for cross-browser effects. The code is as follows:varEventutil = { //To add an event

First, download the Spket plugin and configurespket-1.6.23 plugin Downloadhttp://download.csdn.net/detail/fionamws/4350925After download, put it directly under the MyEclipse installation directory under Dropins, restart the MyEclipseSecond, the

Css and css tutorials Record the learned knowledge today 1. Style initialization. Because different display styles of the browser have different effects, you need to replace or leave the styles with different effects empty.1 @ charset "UTF-8"; 2/*

How to control two rows in the loop variable In the django template, djangotable Wednesday Problems encountered during project creation: Each div is output by a loop variable: {% For key, value in formextenddetail %}{{ key }} {{ value }} {%

HTML (4): input, htmlinput1. Hide the domain (type = "hidden ") Define hidden input fields. Hidden fields are used when a program sends messages that do not need to show users specific values. 2. upload a file (type = "file ") Select fields and the "

Sublime Text 3 (continuous update), sublimetextHow to install the Sublime Text 3 plug-in: directly install It is very convenient to install the Sublime text 3 plug-in. You can directly download the installation package and decompress it to the

Clear float and css clear float Clear floating: the parent element can be opened by floating elements.(1) Add (2) css after pseudo elements (note that this is not a pseudo class, but a pseudo element, represents the latest element after an element)

Html gradient carousel, html gradient This was downloaded from a template when I used it. Now I used it again, and I found it again. To prevent my next use from forgetting, close up this article: Download plug-ins: jquery-2.1.4.min.js and slider. js

CSS implements the triangle effect and css implements the triangle effect. Method 1: Use border to set the border. The element has a height and a width. .triangle { transform: rotate(45deg); display: block; width: 12px; height: 12px;