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javascriptarraysaggregationtyped-arrays

Fastest way to aggregate two typed arrays in javascript

Hello everyone I'm trying to figure out the fastest way to aggregate two typed arrays into a single array.

Imagine data looks like this [Int8Array, Int8Array]

and I want to end up with a single

Int8Array

Currently i'm trying to loop through the parent array and through the subarray since the typed arrays do not support concat method I can't do my normal reduce and concat way.

  for (var i = 0, len = input.length; i < len; i++) {
     for (var n = 0, len = input[i].length; n < len; n++) {
       output.push(input[i][n]);
     }
  }

But i just feel like there has to be a more efficient way to do this.

Attempting to use the set method it appears to be faster but not applicable to more than 2.

http://jsperf.com/typed-array-aggregation

Solution

  • Please refer to the following link. How can I merge TypedArrays in JavaScript?

    They use the set method which does not require to use a loop