Text box should not accept 0's using jQuery

Question

I'm trying to validate the textbox that should not contain all 0's or even just 1 zero, but it can contain any alphanumeric..

Condition is if we give just 0 or all 0's, it should not allow. Can we just check with the val?

Here is the code

$(document).ready(function () {
  $("#btnSave").click(function(){
    AlertSave();
  });
});

function AlertSave(){
  if($('#txt').val() == '0'){
    alert('should not be 0')
  }
}

Fiddle

You're probably better off using a regex than just checking the value. — MCMXCII, Oct 26 '16 at 16:24
You are checking if the entire value is '0' not whether or not it *contains* a '0'. You could use regex or just do `$('#txt').val().IndexOf('0') > -1`. — nurdyguy, Oct 26 '16 at 16:25

score 0 · Accepted Answer · answered Oct 26 '16 at 16:29

0

Check if all characters are '0':

if ([].every.call($('#txt').val(), _ => _ === '0')){
      alert('should not be 0')
    }

answered Oct 26 '16 at 16:29

Malk

11,855
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super.. every.call will check all characters by keeping in the array? – Syed Oct 26 '16 at 16:31
It just treats the string like an array, passing each character to the compare function. – Malk Oct 26 '16 at 16:34

score 0 · Answer 2 · edited May 23 '17 at 12:00

0

Try using Parsley pattern tag with regex to validate your field. check out this How to use the parsley.js pattern tag?

edited May 23 '17 at 12:00

Community

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1

answered Oct 26 '16 at 16:30

shadramon

59
8

Mamdouh Saeed · Answer 3 · 2016-10-26T16:34:38.307

0

Remove extra spaces, break lines, tabs

    function AlertSave() {
    var val = $('#txt').val().replace(/[\s\n\r]/g,"");
         if( val == 0 || val.indexOf("0") > -1){
          alert('should not be 0')
        }
    }

edited Oct 26 '16 at 16:34

answered Oct 26 '16 at 16:32

Mamdouh Saeed

2,302
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Text box should not accept 0's using jQuery

3 Answers3