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JQuery MCQs

JQuery can create event handlers that execute exactly once. How is this done?

$('button').click(function() { console.log('this will only happen once'); }, false);

$('button').on('click', function() { console.log('this will only happen once'); }).off('click');

$('button').once('click', function() { console.log('this will only happen once'); });

$('button').one('click', function() { console.log('this will only happen once'); });

Answer

Correct Answer: $('button').one('click', function() { console.log('this will only happen once'); });

Explanation:

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