Performance ​
es-toolkit/fp is designed with performance as a priority. Compared with other libraries such as remeda, we observed an average 1.5-3x performance improvement. This comes from using modern JavaScript APIs and focusing the implementation on the features that are necessary.
Performance Comparison ​
Test Environment
CPU:Apple M4 Max 16 core(s)
Memory:64.00 GB
Node.js:v22.18.0
Platform:Darwin arm64
| es-toolkit/fp | remeda | Fastest | |
|---|---|---|---|
| pipe/map | 20,063 ops/sec | 6,849 ops/sec | es-toolkit/fp |
| pipe/filter + map | 12,305 ops/sec | 4,092 ops/sec | es-toolkit/fp |
| pipe/uniq | 16,295 ops/sec | 4,358 ops/sec | es-toolkit/fp |
Measurement Method ​
The numbers above were measured on this branch with Vitest:
bash
yarn vitest bench performance/fp/pipe.bench.ts --runSee benchmarks/performance/fp/pipe.bench.ts for the exact benchmark code.