Convert Uint8Array to Array in Javascript

Question

I have Uint8Array instance that contains binary data of some file.
I want to send data to the server, where it will be deserialized as byte[].
But if I send Uint8Array, I have deserialization error.

So, I want to convert it to Array, as Array is deserialized well.
I do it as follows:

    function uint8ArrayToArray(uint8Array) {         var array = [];          for (var i = 0; i < uint8Array.byteLength; i++) {             array[i] = uint8Array[i];         }          return array;     } 

This function works fine, but it is not very efficient for big files.

Question: Is there more efficient way to convert Uint8Array --> Array?

Answer 1

You can use the following in environments that support Array.from already (ES6)

var array = Array.from(uint8Array) 

When that is not supported you can use

var array = [].slice.call(uint8Array)