freeCodeCamp/guide/english/jquery/index.md

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jQuery

jQuery

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jQuery is the most widely-used JavaScript library, and is used in more than half of all major websites.

jQuery makes web development easier to use by providing a number of 'helper' functions. These help developers to quickly write DOM (Document Object Model) interactions without needing to manually write as much JavaScript themselves.

jQuery adds a global variable with all of the libraries methods attached. The naming convention is to have this global variable as </code>. by typing in <code>. you have all the jQuery methods at your disposal.

Example

When a user clicks on a button, all

elements will be hidden:

$(document).ready(function(){
    $("button").click(function(){
        $("p").hide();
    });
});

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