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Web design tutorial

Original js, after pressing the mouse, a simple example of those cells passed

Originally, I wanted to determine which cells were selected, but I found that they didn't work. I could only tell that after the mouse was pressed, the reason why the cells were sent out was that I felt that there were still many interesting things in

2025-08-20
JavaScript form control example explanation

This article shows you the example of multiple examples of js form control for your reference. The specific content is as follows: traversing all controls of the form<script type="text/javascript"> //遍历表单的所有控件 function getValues(){ va

2025-08-20
js to determine that all form items are not empty and submit a form

demo1.html<html><head><title> Submit form page</title><script type="text/javascript"> function myCheck() {

2025-08-20
JS code to determine the browser type and version number

The phpnew blog has a built-in discuz ubb type editor. The editor function is inserted at the cursor, which can be inaccurate on ie11. Today I analyzed it and finally found the reason. The browser wrote the old version of js file to judge that there was a

2025-08-20
Web printing solution to implement the certificate set

In an article that introduced the "Ordinary Report Printing Function of Web Printing Solutions" mentioned earlier, the printing control Lodop is quite convenient to do it. At least the position adjustment interface does not need to be done by yo

2025-08-20
JS code to determine browser types IE, FF, Opera, Safari, Chrome and version

Because of the version of ie10-ie11, document.all judgment is no longer supported, so the ie judgment function needs to be rewritten function isIE() { //ie if (!!window.ActiveXObject || "ActiveXObject

2025-08-20
Modify the drop-down menu in Bootstrap to hover and directly display the original

Recently, the company used the Bootstrap menu function to make web pages. It was necessary to hover the mouse to display the secondary menu, so I studied it and found that there are probably two methods. The first method: Modifying the style sheet is actu

2025-08-20
How to use HTML5 geolocation positioning function

Using relatively simple JavaScript code, you can create web applications that can determine the details of the user's geographical location, including latitude and longitude and altitude. Some web applications can even provide navigation functions by

2025-08-20
Guide to using the canvas method of html5

This article mainly introduces the guide to using the canvas method of html5. It is very simple and clear. It is a very good article. I recommend it to you here. Canvas method save() saves the status of the current environment restore() returns the previo

2025-08-20
Some views on callback functions in js

I'm busy with company android projects recently, so I rarely take time to write something. As soon as I got free, I looked through what I had seen before. After doing Android, I feel the importance of mobile development. Now I am doing native apps and

2025-08-20
In-depth understanding of js variable improvement

JavaScript's function definition has a feature, which will first scan the statements of the entire function body and "promote" all declared variables to the top of the function: 'use strict';function foo() { var x = 'Hello, '

2025-08-20
JS implements mask layer hiding and display effects that are compatible with Firefox and IE iframe onload properties

This article describes the mask layer hiding and display effects that JS implements compatible with Firefox and IE iframe onload properties. Share it for your reference, as follows: <%@ page language="java" import="java.util.*" page

2025-08-20
JS implements a method of rounding to completely retain two decimal places

This article describes the method of js to fully retain two decimal places. Share it for your reference, the details are as follows: // Round and keep 2 decimal places (if the second decimal is 0, keep 1 decimal places) function keepTwoDecimal(num) { var

2025-08-19
Detailed explanation of how to develop command line tools for Node.js

Preface Node has brought great changes to front-end development and promoted the automation of front-end development. We can simplify development work and then use various toolkits to generate production environments. If you run sass src/sass/main.scss di

2025-08-19
Set the implementation code for clicking text box or picture pop-up calendar control

<input id="startDate" value="" readonly="true" type="text" style="cursor: pointer"><input data-tag="start" type="image"

2025-08-19

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