fun-with-html-and-javascript/create1.html at master · sumanth1462/fun-with-html-and-javascript · GitHub

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<!--counting characters-->
<!DOCTYPE html>
<html>
<head>
	<title></title>
	<style>
		body{
			background: skyblue;
			margin-top: 50px;
		}
		.holder{
			background: whitesmoke;
			padding: 20px;
			width: 450px;
		}
		.holder>#text{

			min-height: 200px;
			min-width: 400px;
			max-width: 400px;
			max-height: 200px;
			font-size: 20px;

		}

	</style>
</head>
<body>
	<center>
<div class="holder">
<textarea rows="8" cols="20" id="text" onkeyup="countLetter()"></textarea>
<div>No of letters:<span id="count">0</span></div>
<div>Remmaining letters:<span id="count1">20</span></div></center>
</div>
<script type="text/javascript">
	function countLetter(){
		var a=document.getElementById("text").value;
		document.getElementById("count").innerHTML=a.length;
		var b=20;
		var d= a.length;
		var c= b-d;
		document.getElementById("count1").innerHTML=c;
		if(a.length==20){
			alert("you reached character limit");
			document.getElementById("text").disabled="disabled";
		}

	}
</script>
</body>
</html>