event-handling – Page 16

jQuery checkbox change and click event

September 9, 2022 by Tarik

Tested in JSFiddle and does what you’re asking for.This approach has the added benefit of firing when a label associated with a checkbox is clicked. Updated Answer: $(document).ready(function() { //set initial state. $(‘#textbox1’).val(this.checked); $(‘#checkbox1’).change(function() { if(this.checked) { var returnVal = confirm(“Are you sure?”); $(this).prop(“checked”, returnVal); } $(‘#textbox1’).val(this.checked); }); }); Original Answer: $(document).ready(function() { //set initial … Read more

jQuery checkbox checked state changed event

September 8, 2022 by Tarik

Bind to the change event instead of click. However, you will probably still need to check whether or not the checkbox is checked: $(“.checkbox”).change(function() { if(this.checked) { //Do stuff } }); The main benefit of binding to the change event over the click event is that not all clicks on a checkbox will cause it … Read more

window.onload vs document.onload

September 7, 2022 by Tarik

When do they fire? window.onload By default, it is fired when the entire page loads, including its content (images, CSS, scripts, etc.). In some browsers it now takes over the role of document.onload and fires when the DOM is ready as well. document.onload It is called when the DOM is ready which can be prior … Read more

event.preventDefault() vs. return false

August 22, 2022 by Tarik

return false from within a jQuery event handler is effectively the same as calling both e.preventDefault and e.stopPropagation on the passed jQuery.Event object. e.preventDefault() will prevent the default event from occuring, e.stopPropagation() will prevent the event from bubbling up and return false will do both. Note that this behaviour differs from normal (non-jQuery) event handlers, … Read more