how to display how many characters left for textarea like in twitter?

Question

this is my code

<h3>Comment</h3>
<textarea name="comment" id="comment" placeholder="Your Comment" maxlength="300" required/></textarea>

And I want to display how many characters left like in twitter with JavaScript only ! is there some way ?
I know nothing in javascript !

possible duplicate of [Count textarea characters](http://stackoverflow.com/questions/14086398/count-textarea-characters) — Abhitalks, Aug 18 '15 at 14:45

score 1 · Accepted Answer · answered Aug 18 '15 at 15:03

var letterLimit = 150; 
var textarea = document.getElementById("comment");

document.getElementById("lettersCount").innerHTML  = letterLimit;

textarea.addEventListener('input', function() {
  document.getElementById("lettersCount").innerHTML = letterLimit - textarea.value.length;
}, false);

<h3>Comment</h3>
<textarea name="comment" id="comment" placeholder="Your Comment" maxlength="300" required/></textarea>
<div id="lettersCount"></div>

how to display how many characters left for textarea like in twitter?

1 Answers1