How to use

byteOffset

function

in

Array

/**
  *
  * @desc Splits an array into smaller arrays.
  * Number of elements in one small chunk is given by `part`
  *
  * @param {Number[]} array - The array to split into chunks
  * @param {Number} part - elements in one chunk
  *
  * @returns {Number[]} An array of smaller chunks
  */
 splitArray(array, part) {
  const result = [];
  for (let i = 0; i < array.length; i += part) {
   result.push(new array.constructor(array.buffer, i * 4 + array.byteOffset, part));
  }
  return result;
 }

 || typedArray instanceof Float64Array
) {
 typedArray = new Uint8Array(typedArray.buffer, typedArray.byteOffset, typedArray.byteLength);