JavaScript

Copy Code code as follows: function Setpage (opt) { if (!opt.pagedivid | | Opt.allpagenum var allpagenum = Opt.allpagenum; Total number of pages var showpagenum = Opt.showpagenum; Number of pages displayed var curpagenum = Opt.curpagenum;

1. Statements and expressions There are differences between expressions and statements in JavaScript. An expression produces a value that can be placed anywhere that requires a value, such as an argument that is called as a function. Each of the

Because the main browser is different to the SELECT element rendering, so the display in each browser is not the same, the most important is by default, the UI is too rough, even through the CSS to beautify can not achieve a very beautiful effect.

In JavaScript, settimeout and setinterval receive the first argument is a string or a function, when the object's method is called with settimeout delay in an object Copy Code code as follows: function obj () { This.fn = function ()

Method One: Personally think the best way. Using regular expressions, this is the core principle. Second, this method uses the prototype properties of JavaScript In fact, you do not use this property can be implemented using the function. But this

Because I am writing this article, Baidu find information, find a garden friend of an article, write very well, but I wrote and do not want to give up, so in the inside took a lot of things over! ~~ Translation JavaScript Scoping and hoisting I

Cross-platform event Eventutil objects Eventutil: Copy Code code as follows: var eventutil={ Addeventhandler:function (Otarget, Seventtype, Fnhandler) { if (Otarget.addeventlistener) { Otarget.addeventlistener

I. Flow of events IE is a bubbling event, from the most specific event target to the least specific event target. Netscape Navigator uses a catch-type event, which is the opposite of the bubbling event used in IE. The DOM event stream supports two

Preface In the previous article, we defined the matrix, this article we will add some common methods to the matrix. tostring Method The ToString method is often used as a description of the object as a string, so we define this method as an

When making a form page, want to judge 2 JS objects, is not all exactly the same. Here is the solution on the StackOverflow, recorded here. Copy Code code as follows: Object.prototype.equals = function (x) { var p; For (p in this) { if

Preface In the previous article, we explained the expansion and corrosion function in image processing, which will do the edge gradient calculation function. Edge of Image How is the edge of the image represented mathematically? On the edge of

ObjectiveIn JavaScript, scopes, contexts, closures, functions are the essence of the essence. For the primary jser, it is a prerequisite for advanced. For the front siege, the only way to write elegant code is to calm down and understand the essence.

JavaScript time functions JavaScript provides a Date object for calculations of time and date. The Date object has several constructors: New Date ()//Current timeNumber of milliseconds for new Date (milliseconds)//distance start January 1,

The factory pattern is also one of the object creation patterns, which is typically implemented in a static method of a class or class. One way to construct an object is to use the new operator, but when you use new, it is a "coupling" problem,

reasonAlthough the JavaScript language has been used before, but in order to tie in with the back-end of some of the fragmented "code snippets", not to mention the JavaScript project. It is a great honor to have just arrived at the company last

constructors, prototypes implementation defects of inheritance First, we analyze the two kinds of defects in the constructor and prototype chain to implement the inheritance method: The main problem with constructors (object impersonation) is that

Project structure: Operation Effect: ========================================================= Code section: ========================================================= /clock/webcontent/index.jsp Copy Code code as follows:

1.document.formname.item ("ItemName") problem Note: Under IE, you can use Document.formName.item ("ItemName") or document.formname.elements["elementname"]; Firefox, you can only use the document.formname.elements["ElementName"]. Workaround: Unify

Knowledge Points: Array method: Sort: Descending Reverse: Reverse Sequence Effect: Code: Copy Code code as follows: " Product name " Product Description Shelf time Price Operation 1 123123123

In the GridView, there is a series of Checkbox, which is to be selected or all optional. Started looking on the Internet, but the reference code will select all the Checkbox in the GridView, and I want a single column selection. As shown in