Performance
Designed with performance in mind, es-toolkit provides an average of 2× performance improvement compared to alternative libraries like lodash. Some functions achieve up to an 11× performance gain by fully utilizing modern JavaScript APIs.
Performance Comparison
| es-toolkit@0.0.1 | lodash-es@4.17.21 | Difference | |
|---|---|---|---|
| omit | 4,767,360 times | 403,624 times | 11.8× |
| pick | 9,121,839 times | 2,663,072 times | 3.43× |
| differenceWith | 9,291,897 times | 4,275,222 times | 2.17× |
| difference | 10,436,101 times | 5,155,631 times | 2.02× |
| intersectionWith | 8,074,722 times | 3,814,479 times | 2.12× |
| intersection | 9,999,571 times | 4,630,316 times | 2.15× |
| unionBy | 6,435,983 times | 3,794,899 times | 1.69× |
| union | 5,059,209 times | 4,771,400 times | 1.06× |
| dropRightWhile | 7,529,559 times | 5,606,439 times | 1.34× |
| groupBy | 5,000,235 times | 5,206,286 times | 0.96× |
Tested with MacBook Pro 14-inch (M1 Max, 2021). Refer to our benchmark code.