Question 36339 in Jquery Question posted in
The official Jquery Api Documentation can be found here.

Regex operation Jquery

Am Just accepting only alphanumeric in Text field so i wrote this below code,

This works fine but some times its not working when onlyAllowAlphanumeric called several time

function onlyAllowAlphanumeric(obj) {
    
    obj.value = obj.value.replace(/[^a-zA-Z0-9 _]/g, '');
    console.log(obj.value);
};

$(document).on("keyup", "#fgCode, #sfgCode,#npdPlant ,#plant", function (e) {
    onlyAllowAlphanumeric(this);
});

Is there any other way or any other function to overcome this issue .

need keypress/keyup function to not allow only alphanumeric not even space should be accepted
please help me out

Tags:

2

Answers


  1. 0

    This should do the job for you on single input

    <input onkeydown="return /[a-z]/i.test(event.key)" >
    Login or Signup to reply.
  2. 0

    Try binding <input> to the "input" event. then use .replace() with the RegExp of /[^A-Za-z]/ which means replace anything but letters.

    $(".alpha").on("input", alphaFilter);

function alphaFilter(e) {
  let data = $(this).val();
  $(this).val(data.replace(/[^A-Za-z]/g, ""));
}
  
    <input class="alpha" type="text">

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
    Login or Signup to reply.
Please signup or login to give your own answer.

Back To Top
Search