JavaScript

1.== JavaScript has two sets of equality operators, one for = = and!=, and the other for = = and!==. The former only compares the equality of values, which, in addition to the value, compares the same type. Please try not to use the previous group,

Using JavaScript to determine the Office version is useful in project development, by being an online Office editor in OA system, where we need to have Office Online editing tools that support multiple versions of Office, such as Office2003, 2007.

I believe you are not unfamiliar with global variables, in the function scope of the a=1 this form of the variable is defined as a global variable, in the global scope, in the following 3 forms can be created on the global visible name: Copy

Lock table Field example page Lock table Field example page style= "Border-right:white 2px inset; Border-top:white 2px inset; Border-left:white 2px inset; Border-bottom:white 2px inset; Background-color:scrollbar "> Click to reset

IE7 loads and parses all style sheets into a form of that Explorer can understand. You can then use most CSS2/CSS3 selectors without have to resort to CSS hacks.The lightweight script is a single-line inclusion in your Html/xml document. No

The progress bar can be used in many web, this article is to introduce the progress bar effect, the specific code is as follows: One: Css2 property clip implement Web page progress bar; Before implementing, let's introduce the clip property,

This is my own to do a carousel map, you can see, I have not been optimized. Where there's room for improvement, private conversation. The layout, whatever you're doing. ' 1 2 3 4 5 6 > var c = 0; var T; Window.onload = function () {t

Oddly enough, the JavaScript language actually has two values that represent "none": Undefined and null. Why is that? First, similarityIn JavaScript, assigning a variable to undefined or null is, to be honest, almost indistinguishable. Copy

Describe Language elements In the TextStream file, returns True if the file pointer crosses the End-of-line flag, otherwise it returns FALSE. AtEndOfLine Property Returns True if the file pointer is at the end of the

This is an important keyword in object-oriented languages, and understanding and mastering the use of this keyword is critical to the robustness and elegance of our code. And JavaScript this is different from Java, C # and other pure object-oriented

Copy Code code as follows:

OUTPUT1 is changing value OUTPUT1 is changing the width OUTPUT3 is fading in Output4 is the width with ease

Carousel Map, is a common home page of a picture switching effect, as a front-end developer, I believe that many developers have directly called jquery in the packaging of a good way to achieve picture carousel, easy to save. So I would like to

function request (paras) {//Gets the parameter value of the URL, case-insensitive, and returns an empty string, without this argument. var url = location.href; var parastring = url.substring (Url.indexof ("?") +1,url.length). Split ("&"); var

I write this here is also a point in doing JS when the problem encountered, when a note. Did not expect to be Hax "batch" of a meal, but also said that there is some truth. After all, this content is also perfunctory In general, we use the direct

Reduce method (Ascending) Grammar: Array1.reduce (callbackfn[, InitialValue]) Parameters Defined Array1 Necessary. An array object. Callbackfn Necessary. A function that accepts up to four

The document's advanced article provides functions for node operations, including: getting nodes, changing nodes, deleting nodes, replacing nodes, creating nodes, adding nodes, cloning nodes, and so on. We can use these functions to dynamically

Enter in consoleDb.drawcircle ([50,50],20, "Black");Db.drawline ([5,5],[36,44], "red");You can see the effect Copy Code code as follows:

I. Get the querystring parameter of the URL Two ways to get the querystring parameter of a URL are as follows: 1.1 Method One: regular match Gets the parameter function getquerystring (name) { var reg = new RegExp (^|&) "+ name +" = ([^&]

Event Properties and methods: 1. Type: The types of events, such as Click in Onlick; 2. Srcelement/target: The event source, is the element that occurs; 3. Button: the mouse button declared to be pressed, Integer, 1 for the left, 2 for the right,