Javascript Int32Array reduceRight()

Introduction

The Javascript Int32Array reduceRight() method reduce Int32Array via provided function from right-to-left.

This method works the same as Array.prototype.reduceRight(). 

Int32Array.reduceRight(callback[, initialValue])
Parameter
 Optional
 Meaning
callback





 Required





 Function to execute on each value in the typed array
Taking four arguments:
initialValue - the value returned in the last invocation, or initialValue, if supplied.
currentValue - the current element being processed.
index - the index of the current element being processed.
array - the typed array itself.
initialValue
 Optional
 Object to use as the first argument to the first call of the callback.

Sum up all values within an array 

var total = new Int32Array([0, 1, 2, 3]).reduceRight(function(a, b) {
  return a + b;//from  w ww .j  a  va  2 s. c o  m
});
console.log(total);



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