Remaining Characters Counter


To find out how many characters remaining in input box or textarea when user type, like we see in Twitter or Delicious and other sites as well.

twiiter-character-counter

Add this code in your input box or textarea.

onfocus="characterCount(250, this.id, 'whyMeCount');"  and  maxlength="250"

where,
250 is the number of characters you what the box should take. You can change it as per your need.
whyMeCount is the id (#whyMeCount) of the html element where you want to display the count
and, whyMe id the id of the element on which we need to count characters on.

Example: 
<textarea id="whyMe" onfocus="characterCount(250, this.id, 'whyMeCount');" maxlength="250"></textarea>
<div id="whyMeCount"></div>

Now, add this JavaScript function in your script tag

function characterCount( text_max, boxId, countId ){
	var text_length = $( '#' + boxId ).val().length;
	if(text_length > 0) {
		$( '#' + countId ).html((text_max-text_length) + ' characters remaining');
	} else {
		$( '#' + countId ).html(text_max + ' characters remaining');
	}
	
	$( '#' + boxId ).on('keyup blur', function() {
		text_length = $( '#' + boxId ).val().length;
		var text_remaining = text_max - text_length;
		$( '#' + countId ).html(text_remaining + ' characters remaining');
	});
}

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