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Two good ways to get event source in javascript event function

In the event response of javascript, we need to obtain the event source object to change its properties, such as changing the src attribute of img. There are two ways to obtain the event source in the event response function: The first one: Pass it direct

2025-03-02
For details

We used to use some methods of JS or jQuery to have some methods of JS or jQuery, HasClass, AddClass, and RemoveClass. Add or delete some classes to a class change to a certain style of change, but it is still a little more troublesome. H5 new ClassList c

2025-03-02
Code example for realizing uniform motion in JS

Effect: Idea: Use the setInerval() timer to perform exercise. Then the key point is to give it a judgment to fill the gap when it finally stops. Code: Copy the code and the code is as follows:<head runat="server"><title></title>

2025-03-02
Talk about HTML DOCTYPE and Code

DOCTYPEDOCTYPE is to tell the browser to analyze the HTML to resolve instructions. It must be located in the first line. In some versions, DTD needs to be introduced. HTML5 does not need to introduce DTD Chinese garbled. Essence For example, but the docum

2025-03-02
When making a table in HTML, only the outer border of the table is displayed

I want to ask a question: In Dreamweaver, I created a login form with three rows and one column (including login, registration, and forgotten password). I only want to display the outer border of the form. How can I use code to achieve this?

2025-03-02
Canvas learning and filter implementation code

In this era of proliferation of digital products, taking pictures has become an indispensable part of life. Whether you are at home, outing, or traveling far away, you will always take some beautiful photos. But the photos taken directly by the camera oft

2025-03-02
Detailed explanation of html5 pushstate, popState operation history, brushless refresh changing the current url

I. Knowing Window.historyWindow.history represents the historical record of Window objects, which is actively generated by users and accepted the global object controlled by JavaScript script control. The Window object provides access to the historical re

2025-03-02
Sample code to determine whether the customer's browser supports cookies

1. Copy the code as follows: function check(){ if(window.navigator.cookieEnabled) return true; else{ alert("Browser configuration error, Cookie is not available!"); return f

2025-03-01
Js operation of the DOM in iframe (instance explanation)

Direct assignment is as follows code test to understand: 1.html: Copy code code as follows: below:

2025-03-01
Js gets the value and text of the selected item in the drop-down box.

Js provides two methods for getting the value of the drop-down box and text on the Internet: But some people are very irresponsible, and they do not consider the errors caused by the differences between browsers, which leads many novices to figure out the

2025-03-01
Detailed explanation of property properties of JavaScript objects

The property of an object in JavaScript has three properties: 1.writable. Is this property writable? 2.enumerable. When using the for/in statement, will the property be enumerated? 3.configurable. The property's

2025-03-01
JavaScript makes loading animation effect loading effect

Copy code code as follows:/*AJAX submitted delay waiting effect*/var ajaxloding = new object (); // wraperid: container element that displays the Loding image // ms: indicates the length of the Loding icon display, millisecond // envent: Show

2025-03-01
Solution of JS to $ is not a function

When I was doing the project today, I encountered a super strange problem. My program in HTML runs well. Instead of running JSP in the project, I have been reporting $ is not a function. After looking for a long time, I tried a lot and did not solve it. L

2025-03-01
JavaScript function in the subpage cannot debug the problem solving method

Recently, when a project is doing a project, I will encounter the situation where the JavaScript code will not be able to debug the JavaScript code when submitting in the sub -page. Sometimes this kind of problem, we cannot normally in the browser, see th

2025-03-01
How to make the password box display the password saved to the cookie when changing the password

Just add AUTOCOMPLETE="OFF" in the input box and copy the code as follows:<input name="pwd" id="password" type="password" AUTOCOMPLETE="OFF" />

2025-03-01

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