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JavaScript Array reduceRight()

JavaScript Array reduceRight()

 

 

The reduceRight() method is used to execute a reducer function for each array element. It works from right to left. It returns a single value which is the function accumulated result. It will not execute the function for empty elements.

 

Syntax:-

 

Its syntax is:- array.reduceRight(function(total, currentValue, currentIndex, arr), initialValue)

 

Return:-

 

Its return is:- The accumulated result from the last call of the callback function.

 

Further Explanation:-

 

Parameter Description
function() Required. A function to be run for each element in the array.
Reducer function parameters:
total Required. The initialValue, or the previously returned value of the function.
currentValue Required. The value of the current element.
currentIndex Optional. The index of the current element.
arr Optional. The array to the current element belongs to.
initialValue Optional. A value is to be passed to the function as the initial value.

Code Explanation

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