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Original XMLHttpRequest method details review

Let’s demonstrate with a typical login verification example. Generally speaking, using the XMLHttpRequest object for login verification requires the following steps: 1. Use the DOM method to obtain the value in the input box. Copy the code as follows: var

2025-03-08
HTML Editor Basics (Caincover Must -look)

Open the Dreamweaver and create a new HTML. Essence Body's attributes: BGCOLOR page background color Background background wallpaper, picture text text color topmargin left leftmargin left distance RightMargin right distance bottomma

2025-03-08
How to get the height and width of a page by js

Today, when I was making a pop-up dialog, I used the method of taking the width and height of the parent page. I tried several methods, such as document.body.clientWidth, window.screen.width, document.body.scrollWidth and other methods

2025-03-08
For details, HTML5 address book obtain information for specified multiple people

This article introduces the information of the HTML5 address book to obtain the designated multiple people. The specifics are as follows: 1. Get the information of multiple personal information: Before solving the information of the communication records,

2025-03-08
An example of the problem of calling child windows in ifame parent window under Chrome

A browser incompatibility problem encountered in the project: In IE and Firefox, directly call the child window's js function using the child window's name in the parent window of the ifame framework page, it is easy to use, but it is not easy to

2025-03-08
Online quadratic equation calculator example (equation calculator online calculation)

Copy the code code as follows:<html><head><meta http-equiv="Content-Type" content="text/html" charset="utf-8"><title> Online quadratic equation calculator</title>

2025-03-08
Arguments, Caller, Callee, Apply in JS

Before referring to the above concept, first want to talk about the implicit parameters of the function in the function in JavaScript: Argumentsarguments. [function.] Arguments [n] parameter function: option. Currently executed

2025-03-08
Incant inheritance of the JavaScript tutorial (JS prototype chain)

There is a big difference between the inheritance of JavaScript and the standard OOP inheritance. The inheritance of JavaScript uses the primary chain technology. Each class will put "member variables" and "member functions" on Prototy

2025-03-08
How to disable and undisable page buttons

The concept of timer and delay //--Timer // Timer ID number setInterval (callback function, millisecond number); // Call back function every millisecond number // clearInterval (timer ID number) // Stop the timer with the specified ID number (actually des

2025-03-08
Example of obtaining price implementation in the selection of shopping cars

Copy code code as follows:<!DOCTYPE html><html><head><title> Mycart1.html</title>

2025-03-08
Summary of usage of typeof in js

Typeof in JavaScript is actually very complex. It can be used to do many things, but it also has many weird behaviors. This article lists its multiple uses, and also points out existing problems and solutions. https://developer .mozilla.org/en-US/docs

2025-03-08
Simple implementation of Html5 adapting to iphoneX notch screen

The notch screen of iphone When fixed at the top, if you slide the page up or down, there will be a large gap. If the background is all white, it will be fine.

2025-03-08
Use jQuary to implement text floating prompt effect sample code

Copy the code code as follows: <html><head><meta charset="utf-8"/><script type="text/javascript" src="script/jquery-1.4.2.min.js"></script

2025-03-08
The method of js after the Float type decimal point

After js take the decimal point, the two methods of the two methods https://www.vevb.com/article/154898.htm We will introduce the implementation method of JavaScript to retain the two decimal implementation methods: Four houses and five entry results will

2025-03-08
The process of processing of JS date objects and compatibility

Copy code code as follows: Function NewDate (Str) {str = str.split (' -'); var date = new date (); date.SetutCFullyear (str [0], str [1] - 1, ST

2025-03-08

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