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How to define rest parameter for a function in JavaScript?
With rest parameter, you can represent a number of arguments as an array. ES6 brought rest parameter to ease the work of developers. For arguments objects, rest parameters are indicated by three dots … and precedes a parameter.
Example
Let’s see the following code snippet to define rest parameter.
<html>
<body>
<script>
function addition(…numbers) {
var res = 0;
numbers.forEach(function (number) {
res += number;
});
return res;
}
document.write(addition(3));
document.write(addition(9,10,11,12,13));
</script>
</body>
</html>
Published on 25-Jan-2018 11:24:22
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