JQuery hasData() method Last Updated : 23 Jul, 2024 Comments Improve Suggest changes Like Article Like Report This hasData() method in JQuery is used to determine whether an element has any jQuery data associated with it. This data may be text, event associated with element. There are two examples discussed below: Syntax: jQuery.hasData(element)Arguments: element: This parameter is a DOM element which is to be checked for data. Example: There is no data associated with <div> so the method returns false. html <!DOCTYPE HTML> <html> <head> <title> JQuery | hasData() method </title> <script src="https://code.jquery.com/jquery-3.5.0.js"> </script> </head> <body style="text-align:center;"> <h1 style="color:green;"> GeeksForGeeks </h1> <p id="GFG_UP"> </p> <div> This is DIV </div> <br> <button onclick="Geeks()"> Click here </button> <p id="GFG_DOWN"> </p> <script> var el_up = document.getElementById("GFG_UP"); var el_down = document.getElementById("GFG_DOWN"); var $div = jQuery( "div" ), div = $div[ 0 ]; el_up.innerHTML = "JQuery | hasData() method"; function Geeks() { el_down.innerHTML = jQuery.hasData(div); } </script> </body> </html> Output: Example: There is a event associated with <div> so the method returns true. html <!DOCTYPE HTML> <html> <head> <title> JQuery | hasData() method </title> <script src="https://code.jquery.com/jquery-3.5.0.js"> </script> </head> <body style="text-align:center;"> <h1 style="color:green;"> GeeksForGeeks </h1> <p id="GFG_UP"> </p> <div> This is DIV </div> <br> <button onclick="Geeks()"> Click here </button> <p id="GFG_DOWN"> </p> <script> var el_up = document.getElementById("GFG_UP"); var el_down = document.getElementById("GFG_DOWN"); var $div = jQuery( "div" ), div = $div[ 0 ]; el_up.innerHTML = "JQuery | hasData() method"; $div.on( "click", function() {} ); function Geeks() { el_down.innerHTML = jQuery.hasData(div); } </script> </body> </html> Output: Comment More infoAdvertise with us Next Article JQuery hasData() method P PranchalKatiyar Follow Improve Article Tags : JavaScript Web Technologies JQuery jQuery-Methods Similar Reads jQuery ajax() Method The jQuery ajax() method is used to perform asynchronous HTTP requests, allowing you to load data from a server without reloading the webpage. It provides a flexible way to interact with remote servers using GET, POST, or other HTTP methods, supporting various data formats.Syntax:$.ajax({name:value, 4 min read JQuery | isArray() method This isArray() Method in jQuery is used to determines whether the argument is an array. Syntax: jQuery.isArray( object ) Parameters: The isArray() method accepts only one parameter that is mentioned above and described below: object : This parameter is the object to test whether or not it is an arra 2 min read jQuery | get() Method In jQuery .get() method loads data from the server by using the GET HTTP request. This method returns XMLHttpRequest object. Syntax $.get( url, [data], [callback], [type] ) Parameters url : String containing the URL at which request is to be sent data : This is an optional parameter that represents 2 min read jQuery ajaxSetup() Method The ajaxSetup() method in jQuery is used to set the default values for future AJAX requests. Syntax: $.ajaxSetup( {name:value, name:value, ... } )Parameters: type: It is used to specify the type of request.url: It is used to specify the URL to send the request to.username: It is used to specify a us 3 min read JQuery | isPlainObject() Method This isPlainObject() Method in jQuery is used to check to see if an object is a plain object. Syntax: jQuery.isPlainObject( obj ) Parameters: This method accept a single parameter that is mentioned above and described below: obj: This parameter holds the object that will be checked to see if it's a 2 min read Like