How to restrict Chinese characters in input fields?

Asked Mar 17 '21 at 07:46

Active Mar 17 '21 at 19:46

Viewed 809 times

I want to restrict the Chinese character in the input field, only show the number in the input field. But below coding cannot let me restrict the Chinese character. Hope someone can help me on how to solve the problem?

function isNumberKey(evt) {
  var charCode = (evt.which) ? evt.which : event.keyCode;
  console.log(charCode);
  if (charCode > 31 &&
    (charCode < 48 || charCode > 57))
    return false;

  return true;
}

<input type="text" onkeypress="return isNumberKey(event);" id="code" name="code" value="" title="code">

edited Mar 17 '21 at 19:46

Brian Tompsett - 汤莱恩

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asked Mar 17 '21 at 07:46

Pi Network Crytocurrency

2

Why don't you use `type="number"` for this input field? – cloned Mar 17 '21 at 07:50
Because number can type "e" – Pi Network Crytocurrency Mar 17 '21 at 07:53
https://stackoverflow.com/questions/16848666/prevent-chinese-character-input-using-jquery do you think this can help? – Mar 17 '21 at 07:54
Because e stands for exponential and this is a number. You have to validate if the number that's entered valid, if 2e2 is not a valid number then don't let the user continue with this number. – cloned Mar 17 '21 at 08:02
So I need to write function to restrict e right? – Pi Network Crytocurrency Mar 17 '21 at 09:56
[This seems like the answer](https://stackoverflow.com/questions/27704708/how-to-restrict-chinese-characters-in-a-textbox-using-javascript) – Muhammed Bera Koç Mar 17 '21 at 21:25
Does this answer your question? [How Can I Make oninput() Trigger Only When Chinese Characters, Not IME Keystrokes, Are Entered?](https://stackoverflow.com/questions/53893492/how-can-i-make-oninput-trigger-only-when-chinese-characters-not-ime-keystroke) – Rajat Jun 27 '21 at 11:19
@Rajat Cannot also – Pi Network Crytocurrency Jul 07 '21 at 01:17

How to restrict Chinese characters in input fields?

0 Answers0