TypeScript | Array forEach() Method

0 0 1 minute read

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:

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>