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Javascript tutorial

JS judgment character length, Chinese and English numbers, etc.

Core function: Copy code code as follows:<script type="text/javascript"> var zfl={}; zfl.GetLength = function(str){ var realLength = 0,len = str.le

2025-01-30
Asynchronously dynamically load JS and run (sample code)

As shown below: Copy the code as follows: (function(){var ga=document.createElement('script');ga.type?=?'text/javascript';?ga.async?=?true;ga.src ?=?

2025-01-30
Use JS to solve the method of solving IE6 does not support Max-Width, MAX-Height

Today I encountered a problem about using JS to solve IE6 without supporting Max-Width, MAX-Height. It just started to implement it with the jQuery method, but the value in the CSS has not been obtained. For example, the copy code code is as follows: IF (

2025-01-30
Sharing methods to improve JS code quality using JSLint

With the emergence of rich Web front-end applications, developers have to re-examine and pay attention to the capabilities and use of the JavaScript language, abandoning the past model of simply "copying/pasting" common scripts to complete simpl

2025-01-30
JavaScript uses apply and arguments reuse methods

First, there is a singleton object with many static tool methods attached to it. One of them is each, which is used to traverse arrays or objects. Copy the code as follows: var nativeForEach = [].forEach var nativeMap = [].map var util = {

2025-01-30
Convert js integer string to amount type data (sample code)

Copy the code as follows: function zhen(str) { var arr_1 = ["", "/u62fe", "/u4f70", "/u4edf", "/u4e07", "/u4ebf"], arr_2 = ["", "/u4e07",

2025-01-30
Example of debugging javascript using firebug

Copy the code code as follows:<script type="text/javascript"> //用于在friefox中调试用console.log("hello"); /** function test(name) { console.log(n

2025-01-30
If the button does not write type=button, it will cause it to be submitted when clicked.

There is something very strange: I clicked a button in a pop-up window, and unexpectedly the pop-up window disappeared. After debugging by the company's js master, I discovered the secret. Copy the code as follows: <button onclick="add_q()">Add a ques

2025-01-30
Solve the problem of JQeury displaying content without margins and content next to the browser edge

The content displayed on the written JQuery page has no margins, and the content is close to the browser edge, which is particularly ugly (as shown below). The code is as follows: Copy the code and the code is as follows:<body><form id="form1" runat="serv

2025-01-30
How to use function() in js

JavaScript functions are different from other languages. Each function is maintained and run as an object. Through the properties of function objects, you can easily assign a function to a variable or pass the function as a parameter. Before continuing, l

2025-01-30
Specific implementation of JavaScript exporting page table to Excel

Copy the code code as follows:<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML><HEAD><TITLE> ExportExcel</TITLE>

2025-01-30
onchange and onpropertychange in js (onchange invalid solution)

Author's note: There was no response when I used the onchange event today. Finally, I checked the information and found out about the limitations and instability of Onchange. But onpropertychange can be implemented very well, especially its real-time

2025-01-30
The four call mode and this example introduction of JavaScript

In addition to the formal parameter defined during the statement when calling, each function accepts two additional parameters: this and arguments. This is very important in object -oriented programming, depending on the call mode. JavaScript has four cal

2025-01-30
Detailed explanation

The following functions realize the control ID copy code code of all HTML control types in the page.

2025-01-29
A brief analysis of Path and domain in Cookies

Path path. Specify the WEB page associated with the cookie. The value can be a directory or a path. If //www.VeVB.COm/test/index.html creates a cookie, then all pages in the //www.VeVB.COm/test/ directory,

2025-01-29

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