⚡️ Faster initialization of string with pre-cached slices

[dubzzz]

Description

Follow-up of #5388

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• My PR references one of several related issues (if any)
  • New features or breaking changes must come with an associated Issue or Discussion
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• My PR adds relevant tests and they would have failed without my PR (when applicable)

Advanced

• Category: ⚡️ Improve performance
• Impacts: Faster init of string arbitrary

[changeset-bot]

🦋 Changeset detected

Latest commit: 53df97d

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
fast-check	Minor

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[dubzzz]

Performance results:

│ 45      │ 'Property(fc.string()) on fast-check@3.21.0'                                                                            │ '4,589'  │ 217911.63999965647 │ '±9.63%'  │ 100     │
│ 46      │ 'Property(fc.string()) on fast-check@3.22.0'                                                                            │ '4,078'  │ 245189.8099994287  │ '±10.94%' │ 100     │
│ 47      │ 'Property(fc.string()) on fast-check@main'                                                                              │ '4,359'  │ 229391.56999898842 │ '±11.29%' │ 100     │
│ 48      │ 'Property(fc.string()) on fast-check@extra'                                                                             │ '4,190'  │ 238614.56999904476 │ '±10.12%' │ 100     │
│ 49      │ '—'                                                                                                                     │ '—'      │ '—'                │ '—'       │ '—'     │
│ 50      │ "Property(fc.constant('').chain(() => fc.string())) on fast-check@3.21.0"                                               │ '1,134'  │ 881218.4400021215  │ '±5.74%'  │ 100     │
│ 51      │ "Property(fc.constant('').chain(() => fc.string())) on fast-check@3.22.0"                                               │ '255'    │ 3911387.2999991872 │ '±15.83%' │ 100     │
│ 52      │ "Property(fc.constant('').chain(() => fc.string())) on fast-check@main"                                                 │ '352'    │ 2836993.280001916  │ '±4.67%'  │ 100     │
│ 53      │ "Property(fc.constant('').chain(() => fc.string())) on fast-check@extra"                                                │ '2,097'  │ 476759.8899989389  │ '±13.32%' │ 100     │

Full details at https://github.com/dubzzz/fast-check-benchmarks/actions/runs/11620372383

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Sandbox	Source
@fast-check/examples	Configuration

[github-actions]

👋 A preview of the new documentation is available at: http://6723fb603963d749ce6ccafc--dubzzz-fast-check.netlify.app

[codecov]

Codecov Report

Attention: Patch coverage is 83.67347% with 8 lines in your changes missing coverage. Please review.

Project coverage is 95.23%. Comparing base (16377a8) to head (53df97d).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
packages/fast-check/src/utils/globals.ts	71.42%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5389      +/-   ##
==========================================
- Coverage   95.29%   95.23%   -0.06%     
==========================================
  Files         235      235              
  Lines       10519    10562      +43     
  Branches     2804     2816      +12     
==========================================
+ Hits        10024    10059      +35     
- Misses        495      503       +8     

Flag	Coverage Δ
unit-tests	95.23% <83.67%> (-0.06%)	⬇️
unit-tests-18.x-Linux	95.23% <83.67%> (-0.06%)	⬇️
unit-tests-20.x-Linux	95.23% <83.67%> (-0.06%)	⬇️
unit-tests-22.x-Linux	95.23% <83.67%> (-0.06%)	⬇️
unit-tests-latest-Linux	95.23% <83.67%> (-0.06%)	⬇️

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