: Because the compression algorithm is proprietary, creating new RAR files often requires the official WinRAR command-line utility, whereas decompression is more commonly supported through porting the original C++ unrar source code. Current Technical Solutions
Unlike the ZIP format, which is an open standard with native or high-quality library support in almost every language, RAR is a owned by Alexander L. Roshal. This creates two primary hurdles for JavaScript developers: js.rar
Developers typically use one of three methods to handle js.rar scenarios: : Because the compression algorithm is proprietary, creating