JavaScript TypedArray forEach() Method

The forEach method in JavaScript invokes the specified function once for every element present in the array. However, the forEach method does not run the function for elements in the array that are undefined or have no values.

Syntax:

array.forEach(function(value, index, arr), thisvalue)

Parameters:

Value : The value of the current element.

Index : The array index of the current element.

Arr : This refers to the array upon which the .forEach method is invoked.

Thisvalue: This value serves to instruct the function to utilize this specific value during the execution of the argument function.

Return value:

The value returned by this function is consistently undefined. Whether this function alters the original array supplied depends on the behavior of the function passed as an argument.

Browser Support:

Example 1

JavaScript TypedArray forEach Method

<script type="text/javascript">

// JavaScript to illustrate forEach() method

function isMore() {

 

    //  array

    var items = [1, 29, 47];

    var pyVisualizer = [];

 

    items.forEach(function(item){

        result.push(item*2);

    });

 

    document.write(pyVisualizer);

// expected output: arr[Output:2,58,94]

}

isMore();

</script>

Output:

2,58,94

Example 2

JavaScript TypedArray forEach Method

<script type="text/javascript">

// JavaScript to illustrate forEach() method

var array1 = ['core java', 'C', 'C++'];





array1.forEach(function(element)

{

  document.write(element+"<br/>"

+"<br/>")});

// expected output:

//core java

 

//C

 

//C++

</script>

Output:

Core java

C

C++