The Javascript TypedArray reduce() method is used to reduce the elements of an array into a single value.
Syntax:
array.reduce(function(total, currentValue, index, arr), initialValue)
Parameters: total: It represents the previously returned value of the function. currentValue: It represents the index position of the current element. index: It represents the index position of the current element. arr: It represents the array. thisValue: It represents this argument for the function.
Returns: It returns the reduced single value.
Example 1:
<!DOCTYPE html>
<html>
<body>
<script type="text/javascript">
var Jewels = ["DIAMOND","GOLD","PLATINUM","SILVER"];
let result =Jewels.reduce(function(a,b)
{ return a + b; });
document.write(result);
</script>
</body>
</html>
Example 2:
<!DOCTYPE html>
<html>
<body>
<script type="text/javascript">
const testArray = new Uint8Array([10, 11, 12, 13]);
function sum(previousValue, currentValue) {
return previousValue + currentValue;
}
document.write(testArray.reduce(sum));
</script>
</body>
</html>
