electron/spec/fixtures/module/print_name.js

exports.print = function (obj) {
  return obj.constructor.name
}

exports.echo = function (obj) {
  return obj
}

const typedArrays = {
  Int8Array,
  Uint8Array,
  Uint8ClampedArray,
  Int16Array,
  Uint16Array,
  Int32Array,
  Uint32Array,
  Float32Array,
  Float64Array
}

exports.typedArray = function (type, values) {
  const constructor = typedArrays[type]
  const array = new constructor(values.length)
  for (let i = 0; i < values.length; ++i) {
    array[i] = values[i]
  }
  return array
}