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JavaScript typedArray.reduceRight() Method

Last Updated : 10 Feb, 2023
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The typedArray.reduceRight() is an inbuilt function in JavaScript which is used to reduce each element of the typedArray from right to left into a single value. 

Syntax:

typedArray.reduceRight(callback)

Parameters: It accept a parameter callback function which accept some parameters specified below-

  • previousValue: It is the previously returned value.
  • currentValue: It is the current element being processed in the typedArray.

Return value: It returns the result of the reduceRight() function.

Example:

javascript 
// Creating some typedArray
const A = new Uint8Array([ 1, 2, 3, 4]);
const B = new Uint8Array([5, 6, 7]);
const C = new Uint8Array([1, 3, 5]);
const D = new Uint8Array([2, 4, 6, 8]);

// Calling sum() function 
function sum(previousValue, currentValue) {
return previousValue + currentValue;
}

// Printing reduced value of the given typedArray
console.log(A.reduceRight(sum));
console.log(B.reduceRight(sum));
console.log(C.reduceRight(sum));
console.log(D.reduceRight(sum));

Output:

10
18
9
20

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JavaScript typedArray.reduceRight() Method

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