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Package · npm

fast-check

npm · v4.10.2 · MIT

Property based testing framework for JavaScript (like QuickCheck)

Install

npm install fast-check

Adoption

Downloads (30 days)
208.2M
Observeddownloads / 30 days
Popularity
Top 10% on npm
Derived96th percentile within npm
Dependents
204
Observedpackages that depend on it
Maintenance
0.94
DerivedRelease cadence and recency, 0 to 1
Releases per year
Not reported
Over the package’s life

Growth by period

Derived by Crest of Tech from two observations of npm’s own figure, a period apart. Nothing is stored or estimated: without an observation near the period’s start, the period is still collecting.

7 days
Collectinghistory
Collecting
30 days
+33.1% · 30d
Derived+51.8M downloads / 30 days, SEP 24 → OCT 24
90 days
+82.2% · 90d
Derived+93.9M downloads / 30 days, JUL 26 → OCT 24
1 year
+770.9% · 1y
Derived+184.3M downloads / 30 days, NOV 10 → OCT 24

Adoption historydownloads / 30 days · 14 observations

SEP 24, 2026: 156,448,169 downloads / 30 daysSEP 25, 2026: 157,796,017 downloads / 30 daysSEP 26, 2026: 156,420,387 downloads / 30 daysSEP 27, 2026: 156,825,851 downloads / 30 daysSEP 28, 2026: 162,642,024 downloads / 30 daysSEP 29, 2026: 168,577,346 downloads / 30 daysSEP 30, 2026: 172,459,216 downloads / 30 daysOCT 1, 2026: 176,418,205 downloads / 30 daysOCT 2, 2026: 178,026,295 downloads / 30 daysOCT 3, 2026: 183,917,800 downloads / 30 daysOCT 4, 2026: 183,109,642 downloads / 30 daysOCT 5, 2026: 179,101,435 downloads / 30 daysOCT 6, 2026: 183,109,642 downloads / 30 daysOCT 24, 2026: 208,223,796 downloads / 30 days
Table of observations (14)
Daydownloads / 30 daysDependents
OCT 24, 2026208,223,796204
OCT 6, 2026183,109,642Not observed
OCT 5, 2026179,101,435Not observed
OCT 4, 2026183,109,642Not observed
OCT 3, 2026183,917,800Not observed
OCT 2, 2026178,026,295Not observed
OCT 1, 2026176,418,205Not observed
SEP 30, 2026172,459,216Not observed
SEP 29, 2026168,577,346Not observed
SEP 28, 2026162,642,024Not observed
SEP 27, 2026156,825,851Not observed
SEP 26, 2026156,420,387Not observed
SEP 25, 2026157,796,017Not observed
SEP 24, 2026156,448,169Not observed

Facts from the registry

Latest version
v4.10.2
First published
Not reported
Last release
SEP 19, 2026
35d ago
Licence
MIT
Links
npm page
Homepage · fast-check.dev
Source · github.com

Repository

In the Crest catalog

dubzzz/fast-check

Property based testing framework for JavaScript (like QuickCheck) written in TypeScript

Stars
5.2K
Forks
214
Language
TypeScript
Last push
22d ago
Last release
35d ago

Linked by the package’s own registry metadata.GitHub

Dependencies latest version · v4.10.2

Runtime 1

  • pure-rand^8.0.0

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