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JS judgment the specific implementation of the CSS file is loaded

To determine whether this CSS file is loaded, the practice of each browser is relatively large. This time, I should say that the IE browser is done well. We can directly process the CSS method to load the complete processing of CSS: Copy code code as foll

2025-03-13
js get the time code for the occurrence and termination of daylight saving time in the current time zone

The code copy is as follows:<!DOCTYPE html><html><head><title> DST Calculator</title><script type="text/javascript"> function DisplayDs

2025-03-13
js implements full-screen floating ads when the cursor stops moving

Copy the code code as follows: <!DOCTYPE HTML><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title> JS full screen floating ads

2025-03-13
HTML5-WEBSOCKET Implementing Chat Room Example

The method of implementing the chat room in the traditional webpage is to achieve the relevant chat information by requesting the server to obtain the relevant chat information every other time. Since the WebSocket allows the connection to keep the connec

2025-03-13
Use local variables to improve javascript performance

The deeper the location of an identifier in JavaScript, the slower it reads and writes. Therefore, reading and writing local variables in a function are always the fastest, while reading and writing global variables are usually the slowest. A good rule of

2025-03-13
Js cookie Chinese garbled solution

Copy code code as follows: Function setcookie (name, value) {var exp = new date (); exp.settime (exp.gettime () + 3 * 24 * 60 * 60 * 1000); // 3

2025-03-13
Implement an editable select drop-down list using js

The code copy is as follows: <select id="name" name="name" onkeydown="clearSelect(this,event);" onkeypress="writeSelect(this,event);">

2025-03-13
JavaScript transmits parameters of the same attribute to the background

When we transmit parameters, we often encounter parameters of the same attributes to the background. The best choice is to use an array method. When we transmit it to the background, we only need to define and use array as a parameter as a parameter in th

2025-03-13
Summary of special symbols in regular expressions and several methods of regular expressions (replace, test, search)

The body of a regular expression. Special symbols are used in regular expressions. Below I will briefly introduce the various symbols, their meanings and usage (explanation: "X and above including X"): / indicates that the text following it is a

2025-03-12
The specific implementation method of the inheritance of the JS type

Before starting the code, you should clearly understand what the purpose of the inheritance and what benefits can bring. Generally speaking, when designing the class, we hope to reduce duplicate code and weaken the coupling between classes. It is difficul

2025-03-12
Solutions to common problems in JavaScript (garbled characters, IE cache, proxy)

Two commonly used methods to solve AJAX Chinese garbled characters: 1. EncodeURI on the client (utf-8 does not need to be done, the default), and convert iso-8859-1 encoding to utf-8 encoding on the server side 2. Encode on the client EncodeURI twice, per

2025-03-12
JavaScript General Loading animation effect example code

Since the project is submitted in many places in the project to add the effect of waiting for the animation, I wrote a simple general -purpose JS method; the code is as follows: Copy code code as follows:/*Ajax submitted delay waiting effect*/var ajaxLodi

2025-03-12
Capitalize the initial letter of each word separated by spaces in the string

In a string, each word is separated by a space. The number of spaces is unlimited to copy the code as follows: function capitalize(sting) { var words = string.split(" "); for(var i = 0; i < words .le

2025-03-12
JS example code for page real-time update time

Copy the code as follows: function startTime() {var today = new Date(); //Define the date object var yyyy = today.getFullYear(); //Through the getFullYear() method of the date object

2025-03-12
Example Introduction of the for-in traversal method in JavaScript

Summary: The loop meter of the for-in traversal method is a string type. When traversing the object, it is an object attribute/method name, and the index of the array elements when traversing the array. Unlike the ordinary for cycle, the for-in will inher

2025-03-12

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