Whenever a user enters an incorrect value into a textbox on my page, an error message is displayed within a div with the class 'validation-errors'.
I'm looking for a solution to trigger a javascript function (which adds a CSS property to a button) whenever the error div becomes visible. Currently, this function is activated using window.onload.
Is there a way to automatically run the javascript function if the window changes or when an element is added to the page?
$('.validation-errors').on('change', function () {
if ($('.validation-errors').length) {
// run some code here
}
});
In case jQuery is included in the webpage:
if ($('.validation-errors').length){ /*insert your code here */ }
If you prefer using pure JavaScript, the equivalent code would look like this:
if (document.getElementsByClassName("validation-errors").length){ /*insert your code here */ }
When harnessing the power of jQuery, you have the ability to
$(".error-check").on("click", function() {/* execute code upon detection of an error element */ });
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