JS setCustomValidity第一次不起作用

Question

I want to make a custom validity message to my form, and there are some problem.

The validity message will show after click two times. and if I don't input correct word "text" first time, then it will not submit anymore. what's the problem in my code.

JS:

 function a(){ jQuery("#text")[0].setCustomValidity(""); if (jQuery("#text").val() == "text"){ return confirm('sure?'); } jQuery("#text")[0].setCustomValidity("Incorrect"); return false; } 

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <form action="/" method="post" onsubmit="return a();"> <input type='text' id="text"/> <input type="submit" value="submit"/> </form> 

Answer 1

Please try to check below solution:

 $(document).on('click',"#submit_btn", function() { if($("#text").val() === "text") return confirm('sure?'); else $("#text")[0].setCustomValidity("Incorrect"); }); 

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <form action="/" method="post"> <input type='text' id="text"/> <input type="submit" value="submit" id="submit_btn"/> </form>