The Array.forEach() is an inbuilt TypeScript function which is used to calls a function for each element in the array.
Syntax:
array.forEach(callback[, thisObject])
Parameter: This method accepts two parameter as mentioned above and described below:
- callback : This parameter is the Function to test for each element.
- thisObject : This parameter is the Object to use as this when executing callback.
Return Value: This method returns created array.
Below example illustrate the Array forEach() Method in TypeScript.
Example 1:
JavaScript
<script> // Driver code
var arr = [ 11, 89, 23, 7, 98 ];
// printing each element
arr.forEach( function (value) {
console.log(value);
});
</script> |
Output:
11 89 23 7 98
Example 2:
JavaScript
<script> // Driver code
var arr = [ 1, 2, 3, 4, 5 ];
// printing square of element
arr.forEach( function (value) {
console.log(value * value);
});
</script> |
Output:
1 4 9 16 25