A robust JavaScript benchmarking library that provides statistically significant results, used by jsPerf.com.
Benchmark.js is a robust JavaScript benchmarking library that enables developers to measure and compare the performance of code snippets. It provides statistically significant results and supports high-resolution timers, making it ideal for accurate performance testing. The library is widely recognized as the engine behind jsPerf.com.
JavaScript developers and performance engineers who need to benchmark code across browsers, Node.js, or other environments to optimize performance.
Developers choose Benchmark.js for its statistical rigor, cross-platform reliability, and ease of use in creating and managing benchmark suites, backed by its proven use in jsPerf.com.
A benchmarking library. As used on jsPerf.com.
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Uses advanced statistical methods to ensure benchmarks are accurate and meaningful, as emphasized in the README's focus on 'statistically significant results'.
Leverages high-resolution timers and supports optional integration with the microtime module in Node.js for enhanced measurement accuracy.
Tested across multiple browsers and Node.js versions, ensuring reliable performance comparisons in diverse environments as listed in the support section.
Allows creating test suites with event listeners for 'cycle' and 'complete', enabling asynchronous runs and complex benchmarking workflows, as shown in the usage example.
Requires lodash as a hard dependency and platform.js for full functionality, increasing setup complexity and bundle size for simple use cases.
Outputs results to console logs only, forcing developers to build custom solutions for graphical reports or performance dashboards.
Involves understanding statistical concepts and API nuances, which can be challenging for developers new to benchmarking compared to simpler tools like console.time.