function convert_file_size(bytes: number, decimals: number = 2) : string {
if (bytes === 0) return '0 Bytes';
const unit: number = 1024;
const dec: number = decimals < 0 ? 0 : decimals;
const sizes: string[] = ['Bytes', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
const i = Math.floor(Math.log(bytes) / Math.log(unit));
return parseFloat((bytes / Math.pow(unit, i)).toFixed(dec)) + ' ' + sizes[i];
}
console.log(convert_file_size(63521));
console.log(convert_file_size(37913521));
console.log(convert_file_size(3789913521));
console.log(convert_file_size(3723789913521));
console.log(convert_file_size(3399829987913521));
console.log(convert_file_size(9853399998791352198));
console.log(convert_file_size(9853399998424791352198));
console.log(convert_file_size(100985339999842450791352198));
/*
run:
"62.03 KB"
"36.16 MB"
"3.53 GB"
"3.39 TB"
"3.02 PB"
"8.55 EB"
"8.35 ZB"
"83.53 YB"
*/