Package · npm
is-weakmap
npm · v2.0.2 · MIT
Is this value a JS WeakMap? 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-weakmapAdoption
- Downloads (30 days)
- 324.2M
- Observeddownloads / 30 days
- Popularity
- Top 10% on npm
- Derived98th percentile within npm
- Dependents
- 649
- Observedpackages that depend on it
- Maintenance
- 0.05
- DerivedRelease cadence and recency, 0 to 1
- Releases per year
- 0.6
- 5 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
- −0.0% · 30d
- Derived−123.3K downloads / 30 days, SEP 24 → OCT 24
- 90 days
- +13.4% · 90d
- Derived+38.3M downloads / 30 days, JUL 26 → OCT 24
- 1 year
- +108.7% · 1y
- Derived+168.8M downloads / 30 days, NOV 3 → OCT 24
Adoption history
Adoption historydownloads / 30 days · 111 observations
Table of observations (116)
| Day | downloads / 30 days | Dependents |
|---|---|---|
| OCT 24, 2026 | 324,150,909 | 649 |
| OCT 5, 2026 | 346,334,194 | Not observed |
| OCT 4, 2026 | 346,334,194 | Not observed |
| OCT 3, 2026 | 350,775,240 | Not observed |
| OCT 2, 2026 | 341,889,288 | Not observed |
| OCT 1, 2026 | 342,276,535 | Not observed |
| SEP 30, 2026 | 339,429,612 | Not observed |
| SEP 29, 2026 | 335,478,062 | Not observed |
| SEP 28, 2026 | 324,888,295 | Not observed |
| SEP 27, 2026 | 314,505,762 | Not observed |
| SEP 26, 2026 | 318,843,241 | Not observed |
| SEP 25, 2026 | 324,945,064 | Not observed |
| SEP 24, 2026 | 324,274,175 | Not observed |
| SEP 23, 2026 | 322,373,862 | Not observed |
| SEP 22, 2026 | 319,922,805 | Not observed |
| SEP 21, 2026 | 311,088,542 | Not observed |
| SEP 20, 2026 | 302,764,015 | Not observed |
| SEP 19, 2026 | 306,529,278 | Not observed |
| SEP 18, 2026 | 311,675,687 | Not observed |
| SEP 17, 2026 | 311,614,193 | Not observed |
| SEP 16, 2026 | 310,608,861 | Not observed |
| SEP 15, 2026 | 307,788,559 | Not observed |
| SEP 14, 2026 | 314,422,294 | Not observed |
| SEP 13, 2026 | 305,746,013 | Not observed |
| SEP 12, 2026 | 298,342,801 | Not observed |
| SEP 11, 2026 | 304,858,312 | Not observed |
| SEP 10, 2026 | 304,692,762 | Not observed |
| SEP 9, 2026 | 302,930,341 | Not observed |
| SEP 8, 2026 | 300,512,085 | Not observed |
| SEP 7, 2026 | 307,035,085 | Not observed |
| SEP 6, 2026 | 313,401,635 | Not observed |
| SEP 5, 2026 | 318,527,312 | Not observed |
| SEP 4, 2026 | 322,689,060 | Not observed |
| SEP 3, 2026 | 322,977,630 | Not observed |
| SEP 2, 2026 | 336,771,743 | Not observed |
| SEP 1, 2026 | 334,071,989 | Not observed |
| AUG 31, 2026 | 325,235,117 | Not observed |
| AUG 30, 2026 | 318,213,176 | Not observed |
| AUG 29, 2026 | 323,050,288 | Not observed |
| AUG 28, 2026 | 329,591,421 | Not observed |
| AUG 27, 2026 | 330,250,522 | Not observed |
| AUG 26, 2026 | 329,618,617 | Not observed |
| AUG 25, 2026 | 328,749,920 | Not observed |
| AUG 24, 2026 | 320,554,508 | Not observed |
| AUG 23, 2026 | 312,966,796 | Not observed |
| AUG 22, 2026 | 318,044,404 | Not observed |
| AUG 21, 2026 | 324,479,368 | Not observed |
| AUG 20, 2026 | 325,509,889 | Not observed |
| AUG 19, 2026 | 325,166,963 | Not observed |
| AUG 18, 2026 | 323,594,184 | Not observed |
| AUG 17, 2026 | 315,371,080 | Not observed |
| AUG 16, 2026 | 308,842,274 | Not observed |
| AUG 15, 2026 | 313,433,333 | Not observed |
| AUG 14, 2026 | 319,134,519 | Not observed |
| AUG 13, 2026 | 331,335,726 | Not observed |
| AUG 12, 2026 | 330,464,704 | Not observed |
| AUG 11, 2026 | 329,371,496 | Not observed |
| AUG 10, 2026 | 315,733,999 | Not observed |
| AUG 9, 2026 | 308,110,829 | Not observed |
| AUG 8, 2026 | 312,744,241 | Not observed |
| AUG 7, 2026 | 318,230,959 | Not observed |
| AUG 6, 2026 | 317,951,632 | Not observed |
| AUG 5, 2026 | 318,580,731 | Not observed |
| AUG 4, 2026 | 316,060,128 | Not observed |
| AUG 3, 2026 | 307,004,880 | Not observed |
| AUG 2, 2026 | 298,669,770 | Not observed |
| AUG 1, 2026 | 301,461,934 | Not observed |
| JUL 31, 2026 | 306,479,224 | Not observed |
| JUL 30, 2026 | 306,187,316 | Not observed |
| JUL 29, 2026 | 304,561,286 | Not observed |
| JUL 28, 2026 | 302,482,106 | Not observed |
| JUL 27, 2026 | 293,909,763 | Not observed |
| JUL 26, 2026 | 285,865,954 | Not observed |
| JUL 20, 2026 | 272,714,094 | Not observed |
| JUL 13, 2026 | 267,095,196 | Not observed |
| JUL 6, 2026 | 266,906,018 | Not observed |
| JUN 29, 2026 | 267,070,079 | Not observed |
| JUN 22, 2026 | 274,143,713 | Not observed |
| JUN 15, 2026 | 270,145,611 | Not observed |
| JUN 8, 2026 | 266,314,018 | Not observed |
| JUN 1, 2026 | 261,808,748 | Not observed |
| MAY 25, 2026 | 256,354,817 | Not observed |
| MAY 18, 2026 | 252,206,933 | Not observed |
| MAY 11, 2026 | 245,885,702 | Not observed |
| MAY 4, 2026 | 238,486,393 | Not observed |
| APR 27, 2026 | 235,783,813 | Not observed |
| APR 20, 2026 | 233,470,142 | Not observed |
| APR 13, 2026 | 230,962,518 | Not observed |
| APR 6, 2026 | 230,032,454 | Not observed |
| MAR 30, 2026 | 231,723,768 | Not observed |
| MAR 23, 2026 | 227,133,758 | Not observed |
| MAR 16, 2026 | 219,068,843 | Not observed |
| MAR 9, 2026 | 209,778,499 | Not observed |
| MAR 2, 2026 | 201,570,489 | Not observed |
| FEB 23, 2026 | 192,689,165 | Not observed |
| FEB 16, 2026 | 188,590,209 | Not observed |
| FEB 9, 2026 | 190,062,149 | Not observed |
| FEB 2, 2026 | 181,451,821 | Not observed |
| JAN 26, 2026 | 159,366,798 | Not observed |
| JAN 19, 2026 | 140,435,630 | Not observed |
| JAN 12, 2026 | 128,561,693 | Not observed |
| JAN 5, 2026 | 131,046,898 | Not observed |
| DEC 29, 2025 | 147,357,682 | Not observed |
| DEC 22, 2025 | 162,007,750 | Not observed |
| DEC 15, 2025 | 163,978,880 | Not observed |
| DEC 8, 2025 | 161,558,963 | Not observed |
| DEC 1, 2025 | 158,008,698 | Not observed |
| NOV 24, 2025 | 158,400,514 | Not observed |
| NOV 17, 2025 | 159,417,704 | Not observed |
| NOV 10, 2025 | 157,937,901 | Not observed |
| NOV 3, 2025 | 155,314,464 | Not observed |
| OCT 27, 2025 | Not observed | Not observed |
| OCT 20, 2025 | Not observed | Not observed |
| OCT 13, 2025 | Not observed | Not observed |
| OCT 6, 2025 | Not observed | Not observed |
| OCT 5, 2025 | Not observed | Not observed |
Facts from the registry
- Latest version
- v2.0.2
- 5 versions
- First published
- FEB 18, 2015
- Last release
- MAR 8, 2024
- 3y ago
- Licence
- MIT
Repository
Not in the Crest catalog
inspect-js/is-weakmap (GitHub, opens in a new tab)
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 · v2.0.2
No dependencies are recorded for the latest version.
Related packages
No related package is in the catalog yet.
Related news
No published news event mentions this package or its repository yet.