perf(format): reuse matches instead of created when replacing

[whatwewant]

as title saying. @iamkun

[codecov-io]

Codecov Report

Merging #441 into master will not change coverage.
The diff coverage is 100%.

@@          Coverage Diff          @@
##           master   #441   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files          54     54           
  Lines         481    482    +1     
  Branches       75     75           
=====================================
+ Hits          481    482    +1

Impacted Files	Coverage Δ
src/index.js	100% <100%> (ø)	⬆️

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[naulacambra]

Using benchmarking configuration that @prantlf done at #344, these are the results before and after aplying the suggested changes

// Before changes
// Run 1
format to ISO 8601
  Moment.js x 575,704 ops/sec ±0.81% (92 runs sampled)
  Day.js x 1,291,353 ops/sec ±0.16% (93 runs sampled)
  Date x 1,282,276 ops/sec ±0.72% (92 runs sampled)
The fastest one was Day.js,Date.

use custom format
  Moment.js x 403,049 ops/sec ±0.87% (92 runs sampled)
  date-fns x 248,510 ops/sec ±0.19% (97 runs sampled)
  Day.js x 92,569 ops/sec ±0.60% (94 runs sampled)
  Date x 110,087 ops/sec ±0.51% (93 runs sampled)
The fastest one was Moment.js.

// Run 2
format to ISO 8601
  Moment.js x 581,482 ops/sec ±0.22% (94 runs sampled)
  Day.js x 1,283,799 ops/sec ±0.45% (91 runs sampled)
  Date x 1,281,516 ops/sec ±0.95% (97 runs sampled)
The fastest one was Day.js.

use custom format
  Moment.js x 398,327 ops/sec ±0.74% (95 runs sampled)
  date-fns x 251,037 ops/sec ±0.26% (91 runs sampled)
  Day.js x 92,943 ops/sec ±0.61% (94 runs sampled)
  Date x 111,424 ops/sec ±0.86% (88 runs sampled)
The fastest one was Moment.js.

// Run 3
format to ISO 8601
  Moment.js x 587,677 ops/sec ±0.36% (94 runs sampled)
  Day.js x 1,283,933 ops/sec ±0.61% (94 runs sampled)
  Date x 1,292,830 ops/sec ±0.45% (94 runs sampled)
The fastest one was Date,Day.js.

use custom format
  Moment.js x 405,805 ops/sec ±0.26% (92 runs sampled)
  date-fns x 246,878 ops/sec ±0.68% (95 runs sampled)
  Day.js x 93,373 ops/sec ±0.48% (95 runs sampled)
  Date x 108,543 ops/sec ±0.87% (96 runs sampled)
The fastest one was Moment.js.

// After changes
// Run 1
format to ISO 8601
  Moment.js x 566,197 ops/sec ±0.44% (96 runs sampled)
  Day.js x 1,278,135 ops/sec ±0.42% (95 runs sampled)
  Date x 1,277,178 ops/sec ±0.53% (98 runs sampled)
The fastest one was Day.js,Date.

use custom format
  Moment.js x 404,481 ops/sec ±0.42% (92 runs sampled)
  date-fns x 246,106 ops/sec ±0.22% (94 runs sampled)
  Day.js x 210,707 ops/sec ±0.46% (94 runs sampled)
  Date x 109,623 ops/sec ±0.55% (94 runs sampled)
The fastest one was Moment.js.

// Run 2
format to ISO 8601
  Moment.js x 581,403 ops/sec ±0.56% (96 runs sampled)
  Day.js x 1,287,142 ops/sec ±0.19% (94 runs sampled)
  Date x 1,266,620 ops/sec ±0.77% (95 runs sampled)
The fastest one was Day.js.

use custom format
  Moment.js x 398,335 ops/sec ±1.04% (94 runs sampled)
  date-fns x 251,269 ops/sec ±0.59% (86 runs sampled)
  Day.js x 213,594 ops/sec ±1.11% (95 runs sampled)
  Date x 110,552 ops/sec ±0.59% (97 runs sampled)
The fastest one was Moment.js.

// Run 3
format to ISO 8601
  Moment.js x 583,860 ops/sec ±0.54% (92 runs sampled)
  Day.js x 1,284,957 ops/sec ±0.32% (97 runs sampled)
  Date x 1,280,988 ops/sec ±0.54% (91 runs sampled)
The fastest one was Day.js,Date.

use custom format
  Moment.js x 375,389 ops/sec ±3.35% (87 runs sampled)
  date-fns x 243,691 ops/sec ±1.03% (94 runs sampled)
  Day.js x 211,566 ops/sec ±1.34% (95 runs sampled)
  Date x 112,007 ops/sec ±0.54% (93 runs sampled)
The fastest one was Moment.js.

There are some improvement, so it seems that this is good to go 😀

[iamkun]

🎉 This PR is included in version 1.8.1 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀