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How to prevent iframe from jumping to the page using HTML and use iframe to embed the WeChat web version in the page

I just wanted to make a small thing that combines winform with html5. I suddenly became interested and wanted to embed a WeChat web version in it. Okay, as soon as the idea comes up, take action. The final effect is as follows: From the beginning, I plann

2025-01-29
JS method to implement date addition and subtraction

Effect: molding date - age = required test date! Event: The event is triggered when the molding date text box is changed! The event is triggered when the age text box is changed! Code: (Description: Molding date ID: tbcxrq Age ID: tblq Required test date

2025-01-29
How to implement js to change the size of div by dragging eight points

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

2025-01-29
IE and Firefox's JavaScript compatibility problem solution solution

The following is the situation I encountered in development: 1. Dynamically delete a line in Table. Table: Indicates Table objects. K: Indicates the line number table.rows [k] .Removenode (true); // Firefox's execution failed, IE execution successfull

2025-01-29
HTML page automatically clean up the cache of JS and CSS files (automatic adding version number)

During the development of the web project, we often quote CSS and JS files. After updating files, cache problems often occur (clearly changed the code, but it has not changed when accessing on the browser). In this case, we usually use the following two t

2025-01-29
js verify whether the input is a mobile phone number or phone number example

The code is as follows: Copy the code The code is as follows:<script type="text/javascript"> String.prototype.Trim = function() { var m = this.match(/^/s*(/S+(/s+/S+

2025-01-29
Sample code for dynamically drawing pie charts using html5 canvas

This article introduces the sample code for dynamically drawing a pie chart using HTML5 canvas, and shares it with everyone. The details are as follows: Let’s first look at the rendering. This does not refer to third-party libraries such as jquery, but is

2025-01-29
About the performance and solution of onchange event under IE and FF

In a recent project, there is such a feature: there is a checkbox on the page. When the user selects or deselects the checkbox, a jsonp request will be sent to the background. The implementation at that time was to add an onchange event to this checkbox,

2025-01-29
css+js realizes partial area highlighting and editable mask layer

I think everyone has done common functions such as mask layers, which can be implemented with css or jquery. The implementation methods are diverse. Here http://I will introduce the method I implemented in the project. Full-screen mask, some areas are ope

2025-01-29
Detailed explanation of the basic usage of HTML5 canvas drawing

<canvas></canvas>is a new tag in HTML5, used to draw graphics. In fact, this tag is the same as other tags. Its special feature is that this tag can obtain a CanvasRenderingContext2D object, which we can control through JavaScript scripts.

2025-01-29
Implement a distance tracker using HTML5 Geolocation

HTML5 Geolocation is used to locate the user's location. So how to implement a distance tracker? My idea is this. The premise is that the browser supports h5 geolocation. On this basis, the user's location is obtained, the user's location is u

2025-01-29
Detailed explanation of canvas-based video mask plug-in

Add an overlay to a video to block a certain area of the video. During a certain time period of the video, such as the 10th to 20th minutes, the delimited area will not be displayed. Application scenarios include blocking satellite TV icons, blocking ad

2025-01-29
JS converts numbers into three-digit comma-separated styles (sample code)

Copy the code as follows: function formatNum(num){ if(!/^(/+|-)?(/d+)(/./d+)?$/.test(num)){alert("wrong!") ; return num;} var a = RegExp.$

2025-01-29
Sample code for javascript to obtain the current value of select (compatible with IE/Firefox/Opera/Chrome)

JavaScript gets the current value of Select: var value = document.getElementById("select").options[document.getElementById("select").options.

2025-01-29
js method to determine whether the client is an iOS or Android mobile terminal

Judgment principle: JavaScript is the main language for front-end development. We can judge the type and version of the browser by writing JavaScript programs. There are generally two methods for JavaScript to determine the browser type. One is to disting

2025-01-29

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