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Package · npm

is-symbol

npm · v1.1.1 · MIT

Determine if a value is an ES6 Symbol or not.

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

Install

npm install is-symbol

Adoption

Downloads (30 days)
348.8M
Observeddownloads / 30 days
Popularity
Top 10% on npm
Derived98th percentile within npm
Dependents
1.3K
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
−3.9% · 30d
Derived−14.1M downloads / 30 days, SEP 24 → OCT 24
90 days
+8.8% · 90d
Derived+28.1M downloads / 30 days, JUL 26 → OCT 24
1 year
+69.8% · 1y
Derived+143.4M downloads / 30 days, NOV 3 → OCT 24

Adoption historydownloads / 30 days · 111 observations

NOV 3, 2025: 205,452,338 downloads / 30 daysNOV 10, 2025: 207,770,685 downloads / 30 daysNOV 17, 2025: 209,133,070 downloads / 30 daysNOV 24, 2025: 204,872,672 downloads / 30 daysDEC 1, 2025: 208,293,353 downloads / 30 daysDEC 8, 2025: 213,595,563 downloads / 30 daysDEC 15, 2025: 216,412,175 downloads / 30 daysDEC 22, 2025: 212,258,314 downloads / 30 daysDEC 29, 2025: 188,832,659 downloads / 30 daysJAN 5, 2026: 166,064,462 downloads / 30 daysJAN 12, 2026: 160,468,134 downloads / 30 daysJAN 19, 2026: 170,838,163 downloads / 30 daysJAN 26, 2026: 192,938,563 downloads / 30 daysFEB 2, 2026: 219,802,560 downloads / 30 daysFEB 9, 2026: 230,085,432 downloads / 30 daysFEB 16, 2026: 229,712,542 downloads / 30 daysFEB 23, 2026: 234,394,980 downloads / 30 daysMAR 2, 2026: 243,910,306 downloads / 30 daysMAR 9, 2026: 253,625,194 downloads / 30 daysMAR 16, 2026: 263,971,816 downloads / 30 daysMAR 23, 2026: 273,859,981 downloads / 30 daysMAR 30, 2026: 278,824,801 downloads / 30 daysAPR 6, 2026: 275,775,836 downloads / 30 daysAPR 13, 2026: 275,463,187 downloads / 30 daysAPR 20, 2026: 276,763,774 downloads / 30 daysAPR 27, 2026: 277,725,878 downloads / 30 daysMAY 4, 2026: 280,072,080 downloads / 30 daysMAY 11, 2026: 286,522,081 downloads / 30 daysMAY 18, 2026: 292,789,253 downloads / 30 daysMAY 25, 2026: 296,103,238 downloads / 30 daysJUN 1, 2026: 300,378,044 downloads / 30 daysJUN 8, 2026: 293,027,711 downloads / 30 daysJUN 15, 2026: 283,067,351 downloads / 30 daysJUN 22, 2026: 287,331,882 downloads / 30 daysJUN 29, 2026: 278,663,565 downloads / 30 daysJUL 6, 2026: 289,185,560 downloads / 30 daysJUL 13, 2026: 301,237,392 downloads / 30 daysJUL 20, 2026: 306,434,312 downloads / 30 daysJUL 26, 2026: 320,677,112 downloads / 30 daysJUL 27, 2026: 329,849,232 downloads / 30 daysJUL 28, 2026: 339,688,894 downloads / 30 daysJUL 29, 2026: 341,918,577 downloads / 30 daysJUL 30, 2026: 343,540,763 downloads / 30 daysJUL 31, 2026: 343,718,278 downloads / 30 daysAUG 1, 2026: 337,876,336 downloads / 30 daysAUG 2, 2026: 334,598,365 downloads / 30 daysAUG 3, 2026: 343,928,785 downloads / 30 daysAUG 4, 2026: 354,039,090 downloads / 30 daysAUG 5, 2026: 356,749,650 downloads / 30 daysAUG 6, 2026: 356,013,144 downloads / 30 daysAUG 7, 2026: 356,238,429 downloads / 30 daysAUG 8, 2026: 349,958,882 downloads / 30 daysAUG 9, 2026: 344,655,791 downloads / 30 daysAUG 10, 2026: 353,293,132 downloads / 30 daysAUG 11, 2026: 368,473,624 downloads / 30 daysAUG 12, 2026: 369,672,666 downloads / 30 daysAUG 13, 2026: 370,565,141 downloads / 30 daysAUG 14, 2026: 356,880,251 downloads / 30 daysAUG 15, 2026: 350,358,366 downloads / 30 daysAUG 16, 2026: 345,061,038 downloads / 30 daysAUG 17, 2026: 352,355,664 downloads / 30 daysAUG 18, 2026: 361,595,308 downloads / 30 daysAUG 19, 2026: 363,309,482 downloads / 30 daysAUG 20, 2026: 363,626,489 downloads / 30 daysAUG 21, 2026: 362,416,848 downloads / 30 daysAUG 22, 2026: 355,012,841 downloads / 30 daysAUG 23, 2026: 349,124,565 downloads / 30 daysAUG 24, 2026: 357,578,578 downloads / 30 daysAUG 25, 2026: 366,660,207 downloads / 30 daysAUG 26, 2026: 367,460,017 downloads / 30 daysAUG 27, 2026: 367,863,593 downloads / 30 daysAUG 28, 2026: 367,054,496 downloads / 30 daysAUG 29, 2026: 359,659,035 downloads / 30 daysAUG 30, 2026: 354,150,106 downloads / 30 daysAUG 31, 2026: 362,106,510 downloads / 30 daysSEP 1, 2026: 372,065,702 downloads / 30 daysSEP 2, 2026: 374,995,418 downloads / 30 daysSEP 3, 2026: 359,625,926 downloads / 30 daysSEP 4, 2026: 359,186,829 downloads / 30 daysSEP 5, 2026: 354,324,262 downloads / 30 daysSEP 6, 2026: 348,415,447 downloads / 30 daysSEP 7, 2026: 341,363,519 downloads / 30 daysSEP 8, 2026: 334,170,451 downloads / 30 daysSEP 9, 2026: 336,766,029 downloads / 30 daysSEP 10, 2026: 338,705,564 downloads / 30 daysSEP 11, 2026: 338,850,222 downloads / 30 daysSEP 12, 2026: 331,549,253 downloads / 30 daysSEP 13, 2026: 339,776,755 downloads / 30 daysSEP 14, 2026: 349,657,034 downloads / 30 daysSEP 15, 2026: 342,359,761 downloads / 30 daysSEP 16, 2026: 345,570,679 downloads / 30 daysSEP 17, 2026: 346,659,516 downloads / 30 daysSEP 18, 2026: 346,865,596 downloads / 30 daysSEP 19, 2026: 341,845,599 downloads / 30 daysSEP 20, 2026: 338,670,326 downloads / 30 daysSEP 21, 2026: 348,351,720 downloads / 30 daysSEP 22, 2026: 358,211,755 downloads / 30 daysSEP 23, 2026: 360,855,170 downloads / 30 daysSEP 24, 2026: 362,882,312 downloads / 30 daysSEP 25, 2026: 363,621,067 downloads / 30 daysSEP 26, 2026: 356,803,371 downloads / 30 daysSEP 27, 2026: 351,840,490 downloads / 30 daysSEP 28, 2026: 363,384,999 downloads / 30 daysSEP 29, 2026: 375,157,359 downloads / 30 daysSEP 30, 2026: 379,628,204 downloads / 30 daysOCT 1, 2026: 382,684,153 downloads / 30 daysOCT 2, 2026: 382,166,908 downloads / 30 daysOCT 3, 2026: 391,909,736 downloads / 30 daysOCT 4, 2026: 386,840,008 downloads / 30 daysOCT 5, 2026: 386,840,008 downloads / 30 daysOCT 24, 2026: 348,810,483 downloads / 30 days
Table of observations (112)
Daydownloads / 30 daysDependents
OCT 24, 2026348,810,4831,294
OCT 5, 2026386,840,008Not observed
OCT 4, 2026386,840,008Not observed
OCT 3, 2026391,909,736Not observed
OCT 2, 2026382,166,908Not observed
OCT 1, 2026382,684,153Not observed
SEP 30, 2026379,628,204Not observed
SEP 29, 2026375,157,359Not observed
SEP 28, 2026363,384,999Not observed
SEP 27, 2026351,840,490Not observed
SEP 26, 2026356,803,371Not observed
SEP 25, 2026363,621,067Not observed
SEP 24, 2026362,882,312Not observed
SEP 23, 2026360,855,170Not observed
SEP 22, 2026358,211,755Not observed
SEP 21, 2026348,351,720Not observed
SEP 20, 2026338,670,326Not observed
SEP 19, 2026341,845,599Not observed
SEP 18, 2026346,865,596Not observed
SEP 17, 2026346,659,516Not observed
SEP 16, 2026345,570,679Not observed
SEP 15, 2026342,359,761Not observed
SEP 14, 2026349,657,034Not observed
SEP 13, 2026339,776,755Not observed
SEP 12, 2026331,549,253Not observed
SEP 11, 2026338,850,222Not observed
SEP 10, 2026338,705,564Not observed
SEP 9, 2026336,766,029Not observed
SEP 8, 2026334,170,451Not observed
SEP 7, 2026341,363,519Not observed
SEP 6, 2026348,415,447Not observed
SEP 5, 2026354,324,262Not observed
SEP 4, 2026359,186,829Not observed
SEP 3, 2026359,625,926Not observed
SEP 2, 2026374,995,418Not observed
SEP 1, 2026372,065,702Not observed
AUG 31, 2026362,106,510Not observed
AUG 30, 2026354,150,106Not observed
AUG 29, 2026359,659,035Not observed
AUG 28, 2026367,054,496Not observed
AUG 27, 2026367,863,593Not observed
AUG 26, 2026367,460,017Not observed
AUG 25, 2026366,660,207Not observed
AUG 24, 2026357,578,578Not observed
AUG 23, 2026349,124,565Not observed
AUG 22, 2026355,012,841Not observed
AUG 21, 2026362,416,848Not observed
AUG 20, 2026363,626,489Not observed
AUG 19, 2026363,309,482Not observed
AUG 18, 2026361,595,308Not observed
AUG 17, 2026352,355,664Not observed
AUG 16, 2026345,061,038Not observed
AUG 15, 2026350,358,366Not observed
AUG 14, 2026356,880,251Not observed
AUG 13, 2026370,565,141Not observed
AUG 12, 2026369,672,666Not observed
AUG 11, 2026368,473,624Not observed
AUG 10, 2026353,293,132Not observed
AUG 9, 2026344,655,791Not observed
AUG 8, 2026349,958,882Not observed
AUG 7, 2026356,238,429Not observed
AUG 6, 2026356,013,144Not observed
AUG 5, 2026356,749,650Not observed
AUG 4, 2026354,039,090Not observed
AUG 3, 2026343,928,785Not observed
AUG 2, 2026334,598,365Not observed
AUG 1, 2026337,876,336Not observed
JUL 31, 2026343,718,278Not observed
JUL 30, 2026343,540,763Not observed
JUL 29, 2026341,918,577Not observed
JUL 28, 2026339,688,894Not observed
JUL 27, 2026329,849,232Not observed
JUL 26, 2026320,677,112Not observed
JUL 20, 2026306,434,312Not observed
JUL 13, 2026301,237,392Not observed
JUL 6, 2026289,185,560Not observed
JUN 29, 2026278,663,565Not observed
JUN 22, 2026287,331,882Not observed
JUN 15, 2026283,067,351Not observed
JUN 8, 2026293,027,711Not observed
JUN 1, 2026300,378,044Not observed
MAY 25, 2026296,103,238Not observed
MAY 18, 2026292,789,253Not observed
MAY 11, 2026286,522,081Not observed
MAY 4, 2026280,072,080Not observed
APR 27, 2026277,725,878Not observed
APR 20, 2026276,763,774Not observed
APR 13, 2026275,463,187Not observed
APR 6, 2026275,775,836Not observed
MAR 30, 2026278,824,801Not observed
MAR 23, 2026273,859,981Not observed
MAR 16, 2026263,971,816Not observed
MAR 9, 2026253,625,194Not observed
MAR 2, 2026243,910,306Not observed
FEB 23, 2026234,394,980Not observed
FEB 16, 2026229,712,542Not observed
FEB 9, 2026230,085,432Not observed
FEB 2, 2026219,802,560Not observed
JAN 26, 2026192,938,563Not observed
JAN 19, 2026170,838,163Not observed
JAN 12, 2026160,468,134Not observed
JAN 5, 2026166,064,462Not observed
DEC 29, 2025188,832,659Not observed
DEC 22, 2025212,258,314Not observed
DEC 15, 2025216,412,175Not observed
DEC 8, 2025213,595,563Not observed
DEC 1, 2025208,293,353Not observed
NOV 24, 2025204,872,672Not observed
NOV 17, 2025209,133,070Not observed
NOV 10, 2025207,770,685Not observed
NOV 3, 2025205,452,338Not observed
OCT 27, 2025Not observedNot observed

Facts from the registry

Latest version
v1.1.1
7 versions
First published
JAN 24, 2015
Last release
DEC 13, 2024
23mo ago
Licence
MIT
Links
npm page
Homepage · github.com
Source · github.com

Repository

Not in the Crest catalog

inspect-js/is-symbol

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 · v1.1.1

Runtime 3

  • call-bound^1.0.2
  • has-symbols^1.1.0
  • safe-regex-test^1.1.0

Related packages

No related package is in the catalog yet.

Related news

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