Event triggered on any modification on my form

Question

I made a form with an imput text and a select. To submit the form i want the user to click a verify button in order to check if all fields are correctly filed. If it is then the button submit who was initialy disabled is now enable. Here is the problem, i'd like that if the user modify anything in the form again then the button turn back to disable so that he must verify again to submit. To do so i'd like to find a jQuery event that triggers on any event on my form to turn back the submit button to disable again. Any idea of how could i do ? JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

You can use the form (delegateTarget) then from that select the input types (https://stackoverflow.com/a/3165569/125981) that you wish to be in scope to attach event hanlders, and disable those desired by there type. Since it IS possible to have multiple I have included and example with two submit buttons that are and a reset button that is NOT disabled. To reverse that, you would need to have some way to clear them out so I added an example of a custom event. Added a reset event handler since it may come into play here. $('#myform').on('change keyup', 'input[type="text"], select', function(event) { $(event.delegateTarget).find('input[type="submit"]').each(function() { console.log("disable:", this); this.disabled = true; }); }) .on('all-clear', function(event) { $(event.delegateTarget).find('input[type="submit"]').each(function() { this.disabled = false; }); }) .on('click', '#allclear', function(event) { $(event.delegateTarget).trigger('all-clear'); }) .on('reset', function(event){ // do whatever is desired on the reset of the form }); .find('input[type="text"]').trigger('change'); //IF you want disabled initially First Option Another Option All clear Run code snippetExpand snippet