Get size of a variable in kb

VarSize.ts

export function memorySizeOf(obj) {
  var bytes = 0

  function sizeOf(obj) {
    if (obj !== null && obj !== undefined) {
      switch (typeof obj) {
        case 'number':
          bytes += 8
          break
        case 'string':
          bytes += obj.length * 2
          break
        case 'boolean':
          bytes += 4
          break
        case 'object':
          var objClass = Object.prototype.toString.call(obj).slice(8, -1)
          if (objClass === 'Object' || objClass === 'Array') {
            for (var key in obj) {
              if (!obj.hasOwnProperty(key)) continue
              sizeOf(obj[key])
            }
          } else bytes += obj.toString().length * 2
          break
      }
    }
    return bytes
  }

  function formatByteSize(bytes) {
    if (bytes < 1024) return bytes + ' bytes'
    else if (bytes < 1048576) return (bytes / 1024).toFixed(3) + ' KiB'
    else if (bytes < 1073741824) return (bytes / 1048576).toFixed(3) + ' MiB'
    else return (bytes / 1073741824).toFixed(3) + ' GiB'
  }

  return formatByteSize(sizeOf(obj))
}