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  • JQuery Basic Features Quick Walkthrough

    1. Basic Selectors

    • $('p')—Accesses all the paragraph elements in the HTML file

    • $('div')—Accesses all the div elements in the HTML file

    • $('#A')—Accesses all the HTML elements with id=A

    • $('.b')—Accesses all the HTML elements with class=b

    2. Applying CSS to Elements 

    $('div').addClass('highlight');

    3. Some basic selection APIs

    // select all the elements that contain the text Life
    $('span:contains(Life)').addClass('highlight');
    
    $('div:odd').addClass('highlight');
    $('div:even').addClass('boundary');
    $('p:eq(1)').addClass('linkstyle');

    4. Obtaining the HTML of an Element 

    alert($('p').html());

    5. Changing the Content of a DOM Node 

    $('#textId').text('some text content');
    
    $('p').html('<b>We can create Rich Internet Applications </b><br/>by making AJAX requests');

    6. Creating a DOM Node on the Fly 

    1) Inserts the specified content at the beginning of the selected element and returns a jQuery object 

    $('p').prepend('<h2> Power of selectors </h2>');
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  • 原文地址:https://www.cnblogs.com/davidgu/p/3349501.html
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