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Get size on disk by highest order of magnitude using recursion.
// From
function toLargestUnit (value, unit = `MB`) {
const units = [`MB`, `GB`, `TB`]
const i = units.indexOf(unit)
const nextUnit = units[i + 1]
if (value >= 1024 && nextUnit) {
return toLargestUnit(value / 1024, nextUnit)
return { value, unit }
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