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Package · npm

is-weakset

npm · v2.0.4 · MIT

Is this value a JS WeakSet? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

Not filed under any category yet: no assignment reached confidence 0.5.

Install

npm install is-weakset

Adoption

Downloads (30 days)
325M
Observeddownloads / 30 days
Popularity
Top 10% on npm
Derived98th percentile within npm
Dependents
649
Observedpackages that depend on it
Maintenance
0.08
DerivedRelease cadence and recency, 0 to 1
Releases per year
0.7
7 versions over its 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
−0.1% · 30d
Derived−332.5K downloads / 30 days, SEP 24 → OCT 24
90 days
+13.2% · 90d
Derived+37.9M downloads / 30 days, JUL 26 → OCT 24
1 year
+107.6% · 1y
Derived+168.5M downloads / 30 days, NOV 3 → OCT 24

Adoption historydownloads / 30 days · 111 observations

NOV 3, 2025: 156,570,792 downloads / 30 daysNOV 10, 2025: 159,177,430 downloads / 30 daysNOV 17, 2025: 160,651,404 downloads / 30 daysNOV 24, 2025: 159,636,154 downloads / 30 daysDEC 1, 2025: 159,224,553 downloads / 30 daysDEC 8, 2025: 162,774,148 downloads / 30 daysDEC 15, 2025: 165,198,306 downloads / 30 daysDEC 22, 2025: 163,196,812 downloads / 30 daysDEC 29, 2025: 148,440,174 downloads / 30 daysJAN 5, 2026: 131,986,021 downloads / 30 daysJAN 12, 2026: 129,463,407 downloads / 30 daysJAN 19, 2026: 141,354,338 downloads / 30 daysJAN 26, 2026: 160,401,354 downloads / 30 daysFEB 2, 2026: 182,659,647 downloads / 30 daysFEB 9, 2026: 191,317,567 downloads / 30 daysFEB 16, 2026: 189,858,451 downloads / 30 daysFEB 23, 2026: 193,960,197 downloads / 30 daysMAR 2, 2026: 202,854,794 downloads / 30 daysMAR 9, 2026: 211,072,470 downloads / 30 daysMAR 16, 2026: 220,376,066 downloads / 30 daysMAR 23, 2026: 228,461,845 downloads / 30 daysMAR 30, 2026: 233,084,756 downloads / 30 daysAPR 6, 2026: 231,368,880 downloads / 30 daysAPR 13, 2026: 232,288,624 downloads / 30 daysAPR 20, 2026: 234,797,411 downloads / 30 daysAPR 27, 2026: 237,112,457 downloads / 30 daysMAY 4, 2026: 239,794,146 downloads / 30 daysMAY 11, 2026: 247,205,954 downloads / 30 daysMAY 18, 2026: 253,549,815 downloads / 30 daysMAY 25, 2026: 257,676,522 downloads / 30 daysJUN 1, 2026: 263,158,289 downloads / 30 daysJUN 8, 2026: 257,629,320 downloads / 30 daysJUN 15, 2026: 261,471,991 downloads / 30 daysJUN 22, 2026: 265,495,496 downloads / 30 daysJUN 29, 2026: 269,694,970 downloads / 30 daysJUL 6, 2026: 279,520,202 downloads / 30 daysJUL 13, 2026: 279,627,939 downloads / 30 daysJUL 20, 2026: 285,247,199 downloads / 30 daysJUL 26, 2026: 287,098,216 downloads / 30 daysJUL 27, 2026: 295,179,250 downloads / 30 daysJUL 28, 2026: 303,788,975 downloads / 30 daysJUL 29, 2026: 305,867,076 downloads / 30 daysJUL 30, 2026: 307,489,694 downloads / 30 daysJUL 31, 2026: 307,775,496 downloads / 30 daysAUG 1, 2026: 302,728,234 downloads / 30 daysAUG 2, 2026: 299,915,464 downloads / 30 daysAUG 3, 2026: 308,288,252 downloads / 30 daysAUG 4, 2026: 317,385,524 downloads / 30 daysAUG 5, 2026: 319,913,564 downloads / 30 daysAUG 6, 2026: 319,278,700 downloads / 30 daysAUG 7, 2026: 319,556,032 downloads / 30 daysAUG 8, 2026: 314,035,797 downloads / 30 daysAUG 9, 2026: 309,376,130 downloads / 30 daysAUG 10, 2026: 317,037,372 downloads / 30 daysAUG 11, 2026: 330,727,127 downloads / 30 daysAUG 12, 2026: 331,827,710 downloads / 30 daysAUG 13, 2026: 332,700,559 downloads / 30 daysAUG 14, 2026: 320,447,219 downloads / 30 daysAUG 15, 2026: 314,708,155 downloads / 30 daysAUG 16, 2026: 310,075,588 downloads / 30 daysAUG 17, 2026: 316,611,746 downloads / 30 daysAUG 18, 2026: 324,857,589 downloads / 30 daysAUG 19, 2026: 326,419,851 downloads / 30 daysAUG 20, 2026: 326,757,187 downloads / 30 daysAUG 21, 2026: 325,717,304 downloads / 30 daysAUG 22, 2026: 319,228,831 downloads / 30 daysAUG 23, 2026: 314,115,618 downloads / 30 daysAUG 24, 2026: 321,739,519 downloads / 30 daysAUG 25, 2026: 329,979,678 downloads / 30 daysAUG 26, 2026: 330,848,571 downloads / 30 daysAUG 27, 2026: 331,482,158 downloads / 30 daysAUG 28, 2026: 330,820,004 downloads / 30 daysAUG 29, 2026: 324,247,983 downloads / 30 daysAUG 30, 2026: 319,381,864 downloads / 30 daysAUG 31, 2026: 326,438,937 downloads / 30 daysSEP 1, 2026: 335,316,667 downloads / 30 daysSEP 2, 2026: 338,021,976 downloads / 30 daysSEP 3, 2026: 324,173,141 downloads / 30 daysSEP 4, 2026: 323,880,156 downloads / 30 daysSEP 5, 2026: 319,690,012 downloads / 30 daysSEP 6, 2026: 314,528,713 downloads / 30 daysSEP 7, 2026: 308,146,754 downloads / 30 daysSEP 8, 2026: 301,606,387 downloads / 30 daysSEP 9, 2026: 304,028,509 downloads / 30 daysSEP 10, 2026: 305,792,679 downloads / 30 daysSEP 11, 2026: 305,950,053 downloads / 30 daysSEP 12, 2026: 299,394,583 downloads / 30 daysSEP 13, 2026: 306,814,133 downloads / 30 daysSEP 14, 2026: 315,530,995 downloads / 30 daysSEP 15, 2026: 308,882,605 downloads / 30 daysSEP 16, 2026: 311,713,500 downloads / 30 daysSEP 17, 2026: 312,717,384 downloads / 30 daysSEP 18, 2026: 312,771,195 downloads / 30 daysSEP 19, 2026: 307,587,767 downloads / 30 daysSEP 20, 2026: 303,791,395 downloads / 30 daysSEP 21, 2026: 312,150,042 downloads / 30 daysSEP 22, 2026: 321,024,895 downloads / 30 daysSEP 23, 2026: 323,477,227 downloads / 30 daysSEP 24, 2026: 325,369,421 downloads / 30 daysSEP 25, 2026: 326,027,229 downloads / 30 daysSEP 26, 2026: 319,880,613 downloads / 30 daysSEP 27, 2026: 315,502,919 downloads / 30 daysSEP 28, 2026: 325,919,948 downloads / 30 daysSEP 29, 2026: 336,551,245 downloads / 30 daysSEP 30, 2026: 340,508,602 downloads / 30 daysOCT 1, 2026: 343,355,074 downloads / 30 daysOCT 2, 2026: 342,959,163 downloads / 30 daysOCT 3, 2026: 351,859,204 downloads / 30 daysOCT 4, 2026: 347,382,914 downloads / 30 daysOCT 5, 2026: 347,382,914 downloads / 30 daysOCT 24, 2026: 325,036,881 downloads / 30 days
Table of observations (112)
Daydownloads / 30 daysDependents
OCT 24, 2026325,036,881649
OCT 5, 2026347,382,914Not observed
OCT 4, 2026347,382,914Not observed
OCT 3, 2026351,859,204Not observed
OCT 2, 2026342,959,163Not observed
OCT 1, 2026343,355,074Not observed
SEP 30, 2026340,508,602Not observed
SEP 29, 2026336,551,245Not observed
SEP 28, 2026325,919,948Not observed
SEP 27, 2026315,502,919Not observed
SEP 26, 2026319,880,613Not observed
SEP 25, 2026326,027,229Not observed
SEP 24, 2026325,369,421Not observed
SEP 23, 2026323,477,227Not observed
SEP 22, 2026321,024,895Not observed
SEP 21, 2026312,150,042Not observed
SEP 20, 2026303,791,395Not observed
SEP 19, 2026307,587,767Not observed
SEP 18, 2026312,771,195Not observed
SEP 17, 2026312,717,384Not observed
SEP 16, 2026311,713,500Not observed
SEP 15, 2026308,882,605Not observed
SEP 14, 2026315,530,995Not observed
SEP 13, 2026306,814,133Not observed
SEP 12, 2026299,394,583Not observed
SEP 11, 2026305,950,053Not observed
SEP 10, 2026305,792,679Not observed
SEP 9, 2026304,028,509Not observed
SEP 8, 2026301,606,387Not observed
SEP 7, 2026308,146,754Not observed
SEP 6, 2026314,528,713Not observed
SEP 5, 2026319,690,012Not observed
SEP 4, 2026323,880,156Not observed
SEP 3, 2026324,173,141Not observed
SEP 2, 2026338,021,976Not observed
SEP 1, 2026335,316,667Not observed
AUG 31, 2026326,438,937Not observed
AUG 30, 2026319,381,864Not observed
AUG 29, 2026324,247,983Not observed
AUG 28, 2026330,820,004Not observed
AUG 27, 2026331,482,158Not observed
AUG 26, 2026330,848,571Not observed
AUG 25, 2026329,979,678Not observed
AUG 24, 2026321,739,519Not observed
AUG 23, 2026314,115,618Not observed
AUG 22, 2026319,228,831Not observed
AUG 21, 2026325,717,304Not observed
AUG 20, 2026326,757,187Not observed
AUG 19, 2026326,419,851Not observed
AUG 18, 2026324,857,589Not observed
AUG 17, 2026316,611,746Not observed
AUG 16, 2026310,075,588Not observed
AUG 15, 2026314,708,155Not observed
AUG 14, 2026320,447,219Not observed
AUG 13, 2026332,700,559Not observed
AUG 12, 2026331,827,710Not observed
AUG 11, 2026330,727,127Not observed
AUG 10, 2026317,037,372Not observed
AUG 9, 2026309,376,130Not observed
AUG 8, 2026314,035,797Not observed
AUG 7, 2026319,556,032Not observed
AUG 6, 2026319,278,700Not observed
AUG 5, 2026319,913,564Not observed
AUG 4, 2026317,385,524Not observed
AUG 3, 2026308,288,252Not observed
AUG 2, 2026299,915,464Not observed
AUG 1, 2026302,728,234Not observed
JUL 31, 2026307,775,496Not observed
JUL 30, 2026307,489,694Not observed
JUL 29, 2026305,867,076Not observed
JUL 28, 2026303,788,975Not observed
JUL 27, 2026295,179,250Not observed
JUL 26, 2026287,098,216Not observed
JUL 20, 2026285,247,199Not observed
JUL 13, 2026279,627,939Not observed
JUL 6, 2026279,520,202Not observed
JUN 29, 2026269,694,970Not observed
JUN 22, 2026265,495,496Not observed
JUN 15, 2026261,471,991Not observed
JUN 8, 2026257,629,320Not observed
JUN 1, 2026263,158,289Not observed
MAY 25, 2026257,676,522Not observed
MAY 18, 2026253,549,815Not observed
MAY 11, 2026247,205,954Not observed
MAY 4, 2026239,794,146Not observed
APR 27, 2026237,112,457Not observed
APR 20, 2026234,797,411Not observed
APR 13, 2026232,288,624Not observed
APR 6, 2026231,368,880Not observed
MAR 30, 2026233,084,756Not observed
MAR 23, 2026228,461,845Not observed
MAR 16, 2026220,376,066Not observed
MAR 9, 2026211,072,470Not observed
MAR 2, 2026202,854,794Not observed
FEB 23, 2026193,960,197Not observed
FEB 16, 2026189,858,451Not observed
FEB 9, 2026191,317,567Not observed
FEB 2, 2026182,659,647Not observed
JAN 26, 2026160,401,354Not observed
JAN 19, 2026141,354,338Not observed
JAN 12, 2026129,463,407Not observed
JAN 5, 2026131,986,021Not observed
DEC 29, 2025148,440,174Not observed
DEC 22, 2025163,196,812Not observed
DEC 15, 2025165,198,306Not observed
DEC 8, 2025162,774,148Not observed
DEC 1, 2025159,224,553Not observed
NOV 24, 2025159,636,154Not observed
NOV 17, 2025160,651,404Not observed
NOV 10, 2025159,177,430Not observed
NOV 3, 2025156,570,792Not observed
OCT 27, 2025Not observedNot observed

Facts from the registry

Latest version
v2.0.4
7 versions
First published
FEB 18, 2015
Last release
DEC 17, 2024
23mo ago
Licence
MIT
Links
npm page
Homepage · github.com
Source · github.com

Repository

Not in the Crest catalog

inspect-js/is-weakset

The catalog tracks GitHub repositories with more than 500 stars; this one has no Crest page, so its figures are not shown here.

Dependencies latest version · v2.0.4

Runtime 2

  • call-bound^1.0.3
  • get-intrinsic^1.2.6

Related packages

No related package is in the catalog yet.

Related news

No published news event mentions this package or its repository yet.