text: export function size (size, unit = '', precision = 1) {
    const kb = {
      label: 'k',
      value: 1024
    }
    const mb = {
      label: 'M',
      value: 1024 * 1024
    }
    let denominator
  
    if (size >= mb.value) {
      denominator = mb
    } else {
      denominator = kb
      if (size < kb.value * 0.92 && precision === 0) {
        precision = 1
      }
    }
    return (size / denominator.value).toFixed(precision) + denominator.label + unit
  }
  
  export function round (value, precision) {
    return Math.round(value * precision) / precision
  }
  