calcHumanFileSize

const SPACE_CHARACTER = ' ';
const fileSizeUnits = [ 'o', 'Ko', 'Mo', 'Go'];

calcHumanFileSize(1024, fileSizeUnits, SPACE_CHARACTER); // '1 Ko'
calcHumanFileSize(1_048_576, fileSizeUnits, SPACE_CHARACTER); // '1 Mo'
calcHumanFileSize(1_073_741_824, fileSizeUnits, SPACE_CHARACTER); // '1 Go'