The code is as follows:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <script src="js/jquery-1.3.2.js" ></script> <script type="text/ javascript "><!-- $(function(){ $("#aAttr1").click(function(){ $( ":text").attr("value",$("#pTest").attr("id")); }) $("#aAttr2").click(function(){ $( ":text").attr("value",function(){ return $("#pTest").attr("id"); }); }) $("#aAttr3").click(function(){ $( ":text").attr({value:"test2"}); }) $("#aAttr4").click(function(){ $("#inputTest2").removeAttr("value"); }) }) // --></script> <title>无标题文档</title> </head> <body> <form> <input id="inputTest1" type="text" /> <input id="inputTest2" type="text" value="test" /> <p id="pTest">123</p> <a href="#" id="aAttr1">在text表单中显示p的ID方法1</a>| <a href="#" id="aAttr2">在text表单中显示p的ID方法2</a>| <a href="#" id="aAttr3">在text表单中显示test2</a>| <a href="#" id="aAttr4">去除inputTest2的value属性</a>| <input type="reset" /> </form> </body> </html>
1.element.attr(name)
Description : Used to get the name attribute value of a certain element. For example, $("#pTest").attr("id") in the example can get the ID value of pTest.
2.element.attr(name, value)
Description: Used to set the name attribute value of an element, such as $(":text").attr("value",$("# in the example) pTest").attr("id")) assigns the ID value of pTest to the value value of the text form.
Note: In the example (":text") is used to obtain the elements whose input form type is text. Similarly, other forms can also be obtained in the same way, such as You can use $(":button") to get it, and its return value is Array(Element). You can also use $(":input") to get all input elements. . To get and set the text and value of an element in JQuery, you can also use element.text()/element.text(value), element.val()/element.val(Value), the usage is the same as element.html() , if you have any questions, you can leave a comment and I will explain
3.element.attr(name,function)
Description: Used to set the name attribute value of an element is similar to the previous one, except here The value can be written as a function, which is more flexible.
4.element.remove(name);
Description: Used to remove the name attribute of an element.
The above is the detailed content of Summary related to JQuery element attribute control. For more information, please follow other related articles on the PHP Chinese website!

element.style修改元素的方法:1、修改元素的背景颜色;2、修改元素的字体大小;3、修改元素的边框样式;4、修改元素的字体样式;5、修改元素的水平对齐方式。详细介绍:1、修改元素的背景颜色,其语法为“document.getElementById("myElement").style.backgroundColor = "red";”;2、修改元素的字体大小等等。

实现方法:1、用“$("img").delay(毫秒数).fadeOut()”语句,delay()设置延迟秒数;2、用“setTimeout(function(){ $("img").hide(); },毫秒值);”语句,通过定时器来延迟。

区别:1、axios是一个异步请求框架,用于封装底层的XMLHttpRequest,而jquery是一个JavaScript库,只是顺便封装了dom操作;2、axios是基于承诺对象的,可以用承诺对象中的方法,而jquery不基于承诺对象。

修改方法:1、用css()设置新样式,语法“$(元素).css("min-height","新值")”;2、用attr(),通过设置style属性来添加新样式,语法“$(元素).attr("style","min-height:新值")”。

增加元素的方法:1、用append(),语法“$("body").append(新元素)”,可向body内部的末尾处增加元素;2、用prepend(),语法“$("body").prepend(新元素)”,可向body内部的开始处增加元素。

删除方法:1、用empty(),语法“$("div").empty();”,可删除所有子节点和内容;2、用children()和remove(),语法“$("div").children().remove();”,只删除子元素,不删除内容。

去掉方法:1、用“$(selector).removeAttr("readonly")”语句删除readonly属性;2、用“$(selector).attr("readonly",false)”将readonly属性的值设置为false。

on()方法有4个参数:1、第一个参数不可省略,规定要从被选元素添加的一个或多个事件或命名空间;2、第二个参数可省略,规定元素的事件处理程序;3、第三个参数可省略,规定传递到函数的额外数据;4、第四个参数可省略,规定当事件发生时运行的函数。


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.
