Finding the Length of a String in JavaScript

By Amrit Hallan
2005-10-19


Finding length of a string in JavaScript

When I used JavaScript to find the length of a string for the first time, I kept testing a function something like str.length(), whereas in JavaScript length is not a function, it is a property of the string object. So here is how you find the length of a string using length property of JavaScript:

<script language="javascript" type="text/javascript">

var str="When a dog bites it pains.";
alert(str.length);

</script>

The function alert() in this case should throw up 26. So make a mental note that to calculate the length of a string str in JavaScript, it is str.length and not str.length().

Tutorial Pages:
» Finding length of a string in JavaScript

Related Tutorials: » JavaScript Debugging Techniques with Firebug » Striped Tables Using JavaScript » Opening PDFs in a New Window with JavaScript » Essential Javascript -- A Javascript Tutorial » Submit Forms Conditionally using JavaScript » How to Setup a Randomising Function