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Format the amount with js to set the number of retained decimal places

The code copy is as follows: //The format s of the amount is the parameter to be formatted (float point type), n is the number of digits reserved after the decimal point function formatMoney(s,n){ n = n>0 && n<=20 ? n : 2; s = parseFloat((s+

2025-08-11
Tutorial on drawing particle motion using Canvas in HTML5 combined with formula

This article mainly introduces the tutorial of using Canvas in HTML5 to draw particle motion with formulas, and requires Javascript code as formulas. Friends who need it can refer to the recent idea to create a web page and put some DEMO done in the proce

2025-08-11
Two solutions to submit URL parameters (including special characters such as +) in js form form

Method 1: (Disguise form form submission) linkredwin = function(A,B,C,D,E,F,G){ var formredwin = document.createElement("form"); formredwin.

2025-08-11
Bootstrap Chart component usage tutorial

Bootstrap is a front-end toolkit developed by former Twitter designers Mark Otto and Jacob Thornton, which provides elegant HTML and CSS specifications. Bootstrap is not just a framework, but rather, it changes the whole game. This framework enables many

2025-08-11
Two ways to define functions in JavaScript and function variable assignment

The code copy is as follows:<!DOCTYPE html><html><head><meta charset="UTF-8"><title> Insert title here</title>

2025-08-11
A brief discussion on JavaScript browser objects

The windowwindow object not only acts as a global scope, but also represents a browser window. The window object has innerWidth and innerHeight properties, which can get the inner width and height of the browser window. The internal width and height refer

2025-08-11
JS realizes the effect of slowly enlarging and reducing the image

The examples in this article share the image slowly enlarge and reduce the js implementation code for your reference. The specific content is as follows<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title> Slow zoom of pictures

2025-08-10
Summary of common operations on Date types in javascript

Summary of common operations on Date types in javascript/** 3. * List of methods of date and time script library: 4. * (1) Date.isValiDate: Date legality verification 5. * (2) Date.isValiTime: Time legality verification 6. * (3) D

2025-08-10
How to set the validity period of cookies to 24 o'clock on the same day and the welcome login interface pops up

After simple writing, you can test it according to the time of the specified parameter Deadline format. If there are some intricacies, please point it out. // Set the cookie to expire at the specified time point on the day and prompt function setCookie(na

2025-08-10
Examples of using Array functions shift and pop to create negligible parameters in JS

Two methods are supported in JS Array, shift() and pop(), which refer to deleting a value from the front and the last side of a data, and returning the deleted value. You will understand by looking at an example: the copy code code is as follows: var arr

2025-08-10
How to add thousands to characters based on JS (65, 541, 694, 158)

This article uses 65,541,694,158 as an example to introduce the method of adding thousands of characters. The code is relatively simple and easy to understand. The specific code is as follows:<!DOCTYPE html><html><head><meta charset="utf-8"><title> Add a

2025-08-10
node.js China weather forecast simple implementation

Copy the code as follows: var request = require('request')var url = 'http://www.baidu.com/home/xman/data/superload'var cookie = 'C after you log in to Baidu

2025-08-10
easyi validatebox verification

<html xmlns="http://www.w3.org/1999/xhtml"><head> <script src="easyui1.2.4/jquery-1.6.min.js" type="text/javascript"></s

2025-08-10
Deeply understand the scope and this pointing of js functions

The scope of functions and this pointing are very important parts of js. It takes logic to clarify this thing and see how my logic is... Below is an outline, you can directly select the entries you are interested in to read. Function definition method: Di

2025-08-10
Bootstrap source code analysis (to be continued)

Bootstrap is the most popular HTML, CSS and JS framework for developing responsive layouts, mobile-first WEB projects. ― Bootstrap Chinese document Bootstrap is the most popular because of its support for responsive layout, mobile device priority, and eas

2025-08-10

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