Valentine Valentine - 1 year ago 94
HTML Question

Optimization of the form of validation using jQuery

I want to do validation, which displays an error message in the placeholder of the input.
I write code to check the 1 form field, and change its placeholder if it's empty. How can this be optimized for three fields?

$(document).ready(function() {
$("#submit").click(function() { if($("#name").val()==''||$("#name").val()==null){ $("#name").val("").attr("placeholder","An error occured!").addClass("changePlaceColor1").addClass("changePlaceColor2").addClass("changePlaceColor3").addClass("changePlaceColor4"); } }) })

here is my code in the codepen

Also want to do that to these changes remain until you press input.

Answer Source

just add a class="validation" to all your fields that need to be validated, and change your js to this

$(document).ready(function() {
  $("#submit").click(function(e) {
            .attr("placeholder","An error occured!")

No reason to add validation for each field sepperatly, add a basic validation code and loop through all applicable fields. Less time the same piece of code you have, the better your code is

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