replace-string-rs (WIP)

Rust implementation string replace in Node.js.

⚠️ Heads up

Faster than String.prototype.{replace,replaceAll} if over 100 words, see the Benchmark for details.

Install

npm i replace-string-rs

Support matrix

Operating Systems

| | node14 | node16 | node18 | | ---------------- | ------ | ------ | ------ | | Windows x64 | ✓ | ✓ | ✓ | | Windows x32 | ✓ | ✓ | ✓ | | Windows arm64 | ✓ | ✓ | ✓ | | macOS x64 | ✓ | ✓ | ✓ | | macOS arm64 | ✓ | ✓ | ✓ | | Linux x64 gnu | ✓ | ✓ | ✓ | | Linux x64 musl | ✓ | ✓ | ✓ | | Linux arm gnu | ✓ | ✓ | ✓ | | Linux arm64 gnu | ✓ | ✓ | ✓ | | Linux arm64 musl | ✓ | ✓ | ✓ | | Android arm64 | ✓ | ✓ | ✓ | | Android armv7 | ✓ | ✓ | ✓ | | FreeBSD x64 | ✓ | ✓ | ✓ |

Benchmark

Running "Replace 1 words" suite...
Progress: 100%

  Native replace string:
    3 704 023 ops/s, ±0.17%    | slowest, 75.04% slower

  JavaScript replace via RegExp:
    14 836 889 ops/s, ±0.15%   | fastest

  JavaScript replaceAll:
    12 363 590 ops/s, ±0.09%   | 16.67% slower

Finished 3 cases!
  Fastest: JavaScript replace via RegExp
  Slowest: Native replace string
Running "Replace 10 words" suite...
Progress: 100%

  Native replace string:
    1 620 937 ops/s, ±0.10%   | slowest, 40.29% slower

  JavaScript replace via RegExp:
    2 714 526 ops/s, ±0.05%   | fastest

  JavaScript replaceAll:
    2 598 590 ops/s, ±0.24%   | 4.27% slower

Finished 3 cases!
  Fastest: JavaScript replace via RegExp
  Slowest: Native replace string
Running "Replace 100 words" suite...
Progress: 100%

  Native replace string:
    354 206 ops/s, ±0.44%   | fastest

  JavaScript replace via RegExp:
    303 954 ops/s, ±0.35%   | 14.19% slower

  JavaScript replaceAll:
    303 908 ops/s, ±0.05%   | slowest, 14.2% slower

Finished 3 cases!
  Fastest: Native replace string
  Slowest: JavaScript replaceAll
Running "Replace 1000 words" suite...
Progress: 100%

  Native replace string:
    44 418 ops/s, ±0.09%   | fastest

  JavaScript replace via RegExp:
    30 664 ops/s, ±0.76%   | 30.96% slower

  JavaScript replaceAll:
    30 590 ops/s, ±0.06%   | slowest, 31.13% slower

Finished 3 cases!
  Fastest: Native replace string
  Slowest: JavaScript replaceAll
Running "Replace 10000 words" suite...
Progress: 100%

  Native replace string:
    4 734 ops/s, ±0.05%   | fastest

  JavaScript replace via RegExp:
    2 926 ops/s, ±0.37%   | 38.19% slower

  JavaScript replaceAll:
    2 921 ops/s, ±0.12%   | slowest, 38.3% slower

Finished 3 cases!
  Fastest: Native replace string
  Slowest: JavaScript replaceAll

Sponsors

License

MIT © 2nthony