jQuery Tutorial Tutorials - jQuery jQuery.hasData() method

The jQuery.hasData() method in jQuery is used to check if an element has any jQuery data associated with it.

jQuery jQuery.hasData() method Syntax

jQuery.hasData(element)

element is the DOM element to be checked.

jQuery jQuery.hasData() method example

example

check if the element has jQuery data

var $div = $('div:eq(0)');
console.log(jQuery.hasData($div[0])); // false

$div.data('test',123);
console.log(jQuery.hasData($div[0])); // true

$div.removeData('test',123);
console.log(jQuery.hasData($div[0])); // false

$div.on( "click", function() {} );
console.log(jQuery.hasData($div[0])); // true

$div.off( "click");
console.log(jQuery.hasData($div[0])); // false

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