remove extra comma at the end of the line

Question

I am working on limiting tags so max will be 5 but for this test I will use 2 however, at the end of the line there is an extra comma left when attempting to add another tag more than the max-allowable. How do I remove that comma?

    <body>
        <input id="input" type="text" />
    </body>

   $("#input").keypress(function(e){
    var value = $(this).val().replace(" ", "");
    var words = value.split(",");

    if(words.length > 2){
        //alert("Hey! That's more than 5 words!");
        e.preventDefault();
    }
});

DEMO: http://jsfiddle.net/BzN5W/2/

Possible duplicate of [RTrim in javascript](http://stackoverflow.com/questions/8791394/rtrim-in-javascript) — Rasclatt, Sep 24 '16 at 20:25

score 1 · Answer 1 · answered Sep 24 '16 at 20:28

1

Here, try this :

$("#input").keypress(function(e){
var value = $(this).val().replace(" ", "");
var words = value.split(",");

if(words.length > 5){
    alert("Hey! That's more than 5 words!");

    $('#input').val($('#input').val().substring(0, $('#input').val().length-1));
        e.preventDefault();
}

});

answered Sep 24 '16 at 20:28

Kinshuk Lahiri

1,468
10
23

How do i add another line below it so it prevents adding any more keywords in front – A Rob Sep 24 '16 at 20:38
How can i add a code so it prevents it from typing any more keywords in – A Rob Sep 24 '16 at 20:38

Shrijan Tiwari · Answer 2 · 2016-09-24T20:54:52.073

0

$("#input").keypress(function(e){
   var value = $(this).val().replace(" ", "");
   var words = value.split(",");
   if(words.length > 5){
      $(this).val(value.slice(0,value.length-1))
      e.preventDefault();
   }
});

edited Sep 24 '16 at 20:54

answered Sep 24 '16 at 20:38

Shrijan Tiwari

673
6
17

score 0 · Answer 3 · answered Sep 24 '16 at 21:08

Try this:

    $("#input").keydown(function(e){
      if(e.which === 188 && ($(this).val().match(/,/g) || []).length ==4){
       e.preventDefault();
      }
    });

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<body>
    <input id="input" type="text" />
</body>

remove extra comma at the end of the line

3 Answers3