JavaScript

This is a classic problem. After removing the repeated elements in the array, I searched the internet and found that most of the elements, whether reproduced or original, are the solution: Error solution: functionuniq (array) {varmap {}; varre [];

I have been using js for a long time, but I have never gotten into the js array form. Occasionally, it is a simple string. split (char ). During this time, a project used a lot of arrays. Therefore, I am determined to study hard. This article will

Although arrays and attributes are objects in JavaScript, there is no good reason to use forin to traverse arrays cyclically. On the contrary, there are some good reasons not to use forin to traverse arrays. Note: arrays in JavaScript are not

Array definition: method 1. varmycarsnewArray () mycars [0] Saabmycars [1] Volvomycars [2] BMW method 2. definition and initialization together: varmycarsnewArray (Saab, Volvo, BMW) or: varmycars [Saab, Volvo, BMW]; two-dimensional javascript array,

In JavaScript1.0, the constructor only contains the Date object and user-defined object. You may expect an array constructor, but it never works until JavaScript1.1 appears. Your expectation becomes a reality. For example, we can define a user

The Split method was rarely used in the past. I found some materials today. Usage: myArraystring. split (|) Description: | it is a cut feature character, string is the string to be cut, myArray is the cut result (stored in an array), use myArray [n],

Define and use the slice () method to return the selected elements from an existing array. The arrayObject. slice (start, end) parameter description is required. Specifying where to start Definition and usage The slice () method returns the

Js judges the undefined variable type and directly uses [javascript] if (mydata & amp; #39; undefined & amp; #39;) {alert (& quot; undefined & quot ;);} if (mydata & amp; #39; undefined & amp; #39;) {alert (& quot; undefined & quot;) ;}this is a

In J2EE programming, the most popular scripting language is JavaScript. When JavaScript is used, we usually consider its performance. Therefore, we summarize the summary of the JavaScript Performance Optimization Method for query. When using

Idea: 1. first, you need to locate the elements that implement this effect. If different prompts are dynamically displayed through class2. in this case, you need to set title3. Add the mouseover and mouseout events to the located elements through JQ.

Scripttype & quot; text/javascript & quot; & gt; varNowFrame1; // specifies the number of varMaxFrame3 files for initialization. // The maximum number of functionshow () {for (vari1; I Var NowFrame = 1; // The number of objects displayed during

Call GetDateDiff (start, end, & quot; day & quot;)/** to obtain the time difference. The time format is year-month-day hour: minute: second or year/month/day hour: minute: Second * wherein, year, month, and day are in full format, for example: 2010-1

Solution: both the submission and receipt are UTF-8 or gbk encoding. Call the JQuery function encodeURI to encode the submitted data and then submit or display the data or link. You can use urlencodeURI (url); // url as the data. Note: Pay attention

& Lt; asp: ScriptManagerID & quot; ScriptManager1 & quot; runat & quot; server & quot; & gt; & lt; Services & gt; & lt; asp: ServiceReferencePath & quot; ~ /WebService1.asmx & quot;/& gt; & lt ;/     SinaWeiBo O.

1. All variables, functions, and operators in ECMAScript are case sensitive. 2. identifier: the name of a variable, function, or attribute, or a function parameter. An identifier can be one or more characters in combination according to the

Then in the html page, change charset to GBK, in the referenced js file statement show that charset & quot; UTF-8 & quot; & lt ;! DOCTYPEhtml & gt; & lt; htmllang & quot; en & quot; & gt; & lt; head & gt; & lt ;! -- & Lt; metacharset & quot; UTF-8 &

& Lt; scriptsrc & quot ;.. /js/jquery-1.4.2.min.js & quot; type & quot; text/javascript & quot; & gt; & lt;/script & gt; & lt; scripttype & quot; text/javascript & quot; & gt; functionAutoScr

Where can I insert javascriptjavascript anywhere in HTML. Use the tag script... /Script, you can insert javascript anywhere in the HTML document, or even before HTML. However, if you want to insert a frame in the webpage (Framework Network) of the

JsonJSON (JavaScriptObjectNotation) is a simple data format, which is lighter than xml. JSON is a JavaScript native format, which means that no special API or toolkit is required to process JSON data in JavaScript. JSON rules are simple: the object

Recently, we decided to use json for data transmission in the front and back ends. The front-end js supports json in the native way, and the back-end uses phpjson_decode for parsing. This makes it easy for ajax to interact with jquery, however,