A deep dive into the various selector types in jQuery

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jquery is a widely used javascript library that in web development. in jquery, selectors are very important concept allow developers to select and operate dom elements based on specific conditions. proficient use of selector types can greatly improve development efficiency code readability. this article, we'll take deep dive into the various jquery provide concrete examples. <

1. basic selector< h3>

the basic simplest most commonly type jquery. you by their tag name, id, class="contentsignin" name. for example: p>

 通过标签名选择 $('div').css('color', 'red'); 通过id选择 $('#myid').fadeout(); 通过类名选择 $('.myclass').slideup();< pre>
copy after login< div>< div>
2. hierarchical h3>
the hierarchical child elements, descendant etc. under specified element. common include element selectors>< code>, spaces, 选取子元素 $('ul li').css('background-color', 'yellow'); 选取后代元素 $('form input').attr('disabled', 'true');< div>
3. filter h3>
filter allows filter out meet :first<  :last< :even< :odd< 选取第一个元素 $('li:first').addclass('highlight'); 选取偶数位置元素 $('tr:even').css('background-color', 'lightgrey');< div>
4. content content selects text content. :contains()< code>. 选择包含“hello”的元素 $('p:contains("hello")').addclass('greeting');< div>
5. state state according state, such as visible hidden :visible< :hidden< 选取可见元素 $('img:visible').fadein(); 选取隐藏元素 $('div:hidden').slidedown();< div>
6. form form input boxes, check drop-down :input< :checkbox< :radio< :button< 选取输入框元素 $('input:text').css('border', '1px solid red'); 选取复选框 $('input:checkbox').prop('checked', true);< div>
through flexible application above types, more efficiently achieve dynamic effects interactions. actual development, needs be flexibly selected scenarios maintainability scalability code. i hope through introduction readers will have deeper understanding able them skillfully complete tasks. p>

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code readability - jquery - Selector - Discussion

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