The live example link http://embed.plnkr.co/VgRD8B/
//DECLARE OPTIONAL PARAMETERS
IN BELOW FUNCTION
function myFunction(i, j) {
i = i || 0;
j = j || 0;
//IN THE ABOVE LINE, (i/j)
WILL BE SET EITHER TO VALUE OF (i/j) OR TO DEFAULT VALUE (0).
}
For
example in detail
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script>
<script>
//DECLARE OPTIONAL PARAMETERS
IN BELOW FUNCTION
function myFunction(i, j) {
i = i || 0;
j = j || 0;
alert('i : ' + i + ' j : ' + j);
//IN THE ABOVE LINE, (i/j)
WILL BE SET EITHER TO VALUE OF (i/j) OR TO DEFAULT VALUE (0).
}
//Calling to function.
myFunction(2);
</script>
</head>
<body>
<h1>DECLARE OPTIONAL
PARAMETERS FUNCTION</h1>
<p>
For more detail go to link
<a href="http://www.code-sample.com/">example</a>
</p>
</body>
</html>
The
output link http://embed.plnkr.co/VgRD8B/
