Speeding up the JavaScript ecosystem - Semver

The semver library used by npm, yarn, and pnpm can be optimized by 33x through eliminating duplicate validation steps and implementing more efficient parsing. During package installation, these tools make over 21,000 semver function calls, with most being redundant validation before parsing. By following the 'parse, don't validate' principle and writing a custom parser, performance improvements of 10-25x are achievable, significantly speeding up dependency installation across all major JavaScript package managers.