Array iteration:It is nothing but to check each and every element in an array according to requirement of the function.
forEach()
The forEach() method calls function once for every element in an array. Below are two examples to show the method.
Example-1
<html>
<body>
<p id="each"></p>
<script>
var num = "";
var values = [1,2,3,4,5];
values.forEach(myArray);
document.getElementById("each").innerHTML = num;
function myArray(value, index, array) {
num = num + value + "<br>";
}
</script>
</body>
</html>Output
1 2 3 4 5
Example-2
<html>
<body>
<script>
var array = ['Ram', 'Rahim', 'Remo'];
array.forEach(function(e) {
document.write(e);
document.write("</br>");
});
</script>
</body>
</html>Output
Ram Rahim Remo