jQuery Testing and Debugging
40 minTesting jQuery code involves unit testing, integration testing, and debugging techniques.
jQuery provides debugging tools and methods for troubleshooting.
Understanding jQuery's internal structure helps with debugging complex issues.
Exercise
Write a simple test for jQuery functionality and use debugging techniques.
// Simple jQuery test
$(document).ready(function() {
// Test if element exists
if ($('#testElement').length > 0) {
console.log('Element found');
// Test click functionality
$('#testElement').click(function() {
console.log('Click event fired');
$(this).addClass('clicked');
});
} else {
console.error('Element not found');
}
// Debug jQuery object
var $element = $('#debugElement');
console.log('jQuery object:', $element);
console.log('Element count:', $element.length);
console.log('Element properties:', $element.prop('tagName'));
});