Get Started

Package · npm

once

npm · v1.4.0 · ISC

Run a function exactly one time

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

Install

npm install once

Adoption

Downloads (30 days)
627.9M
Observeddownloads / 30 days
Popularity
Top 1% on npm
Derived99th percentile within npm
Dependents
3.7K
Observedpackages that depend on it
Maintenance
0.05
DerivedRelease cadence and recency, 0 to 1
Releases per year
1.7
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
−0.2% · 30d
Derived−970.1K downloads / 30 days, SEP 24 → OCT 24
90 days
+14.6% · 90d
Derived+79.9M downloads / 30 days, JUL 26 → OCT 24
1 year
+97.3% · 1y
Derived+309.6M downloads / 30 days, NOV 3 → OCT 24

Adoption historydownloads / 30 days · 73 observations

JUL 26, 2026: 548,075,191 downloads / 30 daysJUL 27, 2026: 562,520,846 downloads / 30 daysJUL 28, 2026: 577,857,638 downloads / 30 daysJUL 29, 2026: 581,278,130 downloads / 30 daysJUL 30, 2026: 583,683,633 downloads / 30 daysJUL 31, 2026: 583,898,727 downloads / 30 daysAUG 1, 2026: 573,846,123 downloads / 30 daysAUG 2, 2026: 568,034,330 downloads / 30 daysAUG 3, 2026: 583,240,402 downloads / 30 daysAUG 4, 2026: 600,112,804 downloads / 30 daysAUG 5, 2026: 604,497,300 downloads / 30 daysAUG 6, 2026: 602,702,684 downloads / 30 daysAUG 7, 2026: 603,249,038 downloads / 30 daysAUG 8, 2026: 592,748,931 downloads / 30 daysAUG 9, 2026: 583,774,184 downloads / 30 daysAUG 10, 2026: 597,840,916 downloads / 30 daysAUG 11, 2026: 623,809,037 downloads / 30 daysAUG 12, 2026: 626,325,251 downloads / 30 daysAUG 13, 2026: 627,969,581 downloads / 30 daysAUG 14, 2026: 604,584,705 downloads / 30 daysAUG 15, 2026: 593,661,010 downloads / 30 daysAUG 16, 2026: 584,470,616 downloads / 30 daysAUG 17, 2026: 596,313,676 downloads / 30 daysAUG 18, 2026: 611,971,030 downloads / 30 daysAUG 19, 2026: 615,505,704 downloads / 30 daysAUG 20, 2026: 617,038,758 downloads / 30 daysAUG 21, 2026: 616,260,835 downloads / 30 daysAUG 22, 2026: 604,489,769 downloads / 30 daysAUG 23, 2026: 595,063,396 downloads / 30 daysAUG 24, 2026: 610,025,552 downloads / 30 daysAUG 25, 2026: 626,560,696 downloads / 30 daysAUG 26, 2026: 629,240,937 downloads / 30 daysAUG 27, 2026: 630,799,293 downloads / 30 daysAUG 28, 2026: 629,968,533 downloads / 30 daysAUG 29, 2026: 617,673,266 downloads / 30 daysAUG 30, 2026: 608,384,181 downloads / 30 daysAUG 31, 2026: 622,100,802 downloads / 30 daysSEP 1, 2026: 639,383,936 downloads / 30 daysSEP 2, 2026: 644,833,360 downloads / 30 daysSEP 3, 2026: 618,635,996 downloads / 30 daysSEP 4, 2026: 618,628,693 downloads / 30 daysSEP 5, 2026: 611,454,926 downloads / 30 daysSEP 6, 2026: 601,639,074 downloads / 30 daysSEP 7, 2026: 589,442,835 downloads / 30 daysSEP 8, 2026: 577,264,190 downloads / 30 daysSEP 9, 2026: 582,154,918 downloads / 30 daysSEP 10, 2026: 585,645,725 downloads / 30 daysSEP 11, 2026: 586,082,071 downloads / 30 daysSEP 12, 2026: 573,730,994 downloads / 30 daysSEP 13, 2026: 587,681,600 downloads / 30 daysSEP 14, 2026: 604,145,677 downloads / 30 daysSEP 15, 2026: 591,789,304 downloads / 30 daysSEP 16, 2026: 597,886,539 downloads / 30 daysSEP 17, 2026: 600,394,232 downloads / 30 daysSEP 18, 2026: 601,165,854 downloads / 30 daysSEP 19, 2026: 591,212,189 downloads / 30 daysSEP 20, 2026: 584,325,545 downloads / 30 daysSEP 21, 2026: 601,253,232 downloads / 30 daysSEP 22, 2026: 619,135,488 downloads / 30 daysSEP 23, 2026: 624,940,969 downloads / 30 daysSEP 24, 2026: 628,898,206 downloads / 30 daysSEP 25, 2026: 630,754,575 downloads / 30 daysSEP 26, 2026: 619,394,471 downloads / 30 daysSEP 27, 2026: 611,486,351 downloads / 30 daysSEP 28, 2026: 632,104,805 downloads / 30 daysSEP 29, 2026: 653,128,957 downloads / 30 daysSEP 30, 2026: 661,288,713 downloads / 30 daysOCT 1, 2026: 666,565,070 downloads / 30 daysOCT 2, 2026: 666,468,098 downloads / 30 daysOCT 3, 2026: 683,368,348 downloads / 30 daysOCT 4, 2026: 673,957,614 downloads / 30 daysOCT 5, 2026: 673,957,614 downloads / 30 daysOCT 24, 2026: 627,928,156 downloads / 30 days
Table of observations (73)
Daydownloads / 30 daysDependents
OCT 24, 2026627,928,1563,717
OCT 5, 2026673,957,614Not observed
OCT 4, 2026673,957,614Not observed
OCT 3, 2026683,368,348Not observed
OCT 2, 2026666,468,098Not observed
OCT 1, 2026666,565,070Not observed
SEP 30, 2026661,288,713Not observed
SEP 29, 2026653,128,957Not observed
SEP 28, 2026632,104,805Not observed
SEP 27, 2026611,486,351Not observed
SEP 26, 2026619,394,471Not observed
SEP 25, 2026630,754,575Not observed
SEP 24, 2026628,898,206Not observed
SEP 23, 2026624,940,969Not observed
SEP 22, 2026619,135,488Not observed
SEP 21, 2026601,253,232Not observed
SEP 20, 2026584,325,545Not observed
SEP 19, 2026591,212,189Not observed
SEP 18, 2026601,165,854Not observed
SEP 17, 2026600,394,232Not observed
SEP 16, 2026597,886,539Not observed
SEP 15, 2026591,789,304Not observed
SEP 14, 2026604,145,677Not observed
SEP 13, 2026587,681,600Not observed
SEP 12, 2026573,730,994Not observed
SEP 11, 2026586,082,071Not observed
SEP 10, 2026585,645,725Not observed
SEP 9, 2026582,154,918Not observed
SEP 8, 2026577,264,190Not observed
SEP 7, 2026589,442,835Not observed
SEP 6, 2026601,639,074Not observed
SEP 5, 2026611,454,926Not observed
SEP 4, 2026618,628,693Not observed
SEP 3, 2026618,635,996Not observed
SEP 2, 2026644,833,360Not observed
SEP 1, 2026639,383,936Not observed
AUG 31, 2026622,100,802Not observed
AUG 30, 2026608,384,181Not observed
AUG 29, 2026617,673,266Not observed
AUG 28, 2026629,968,533Not observed
AUG 27, 2026630,799,293Not observed
AUG 26, 2026629,240,937Not observed
AUG 25, 2026626,560,696Not observed
AUG 24, 2026610,025,552Not observed
AUG 23, 2026595,063,396Not observed
AUG 22, 2026604,489,769Not observed
AUG 21, 2026616,260,835Not observed
AUG 20, 2026617,038,758Not observed
AUG 19, 2026615,505,704Not observed
AUG 18, 2026611,971,030Not observed
AUG 17, 2026596,313,676Not observed
AUG 16, 2026584,470,616Not observed
AUG 15, 2026593,661,010Not observed
AUG 14, 2026604,584,705Not observed
AUG 13, 2026627,969,581Not observed
AUG 12, 2026626,325,251Not observed
AUG 11, 2026623,809,037Not observed
AUG 10, 2026597,840,916Not observed
AUG 9, 2026583,774,184Not observed
AUG 8, 2026592,748,931Not observed
AUG 7, 2026603,249,038Not observed
AUG 6, 2026602,702,684Not observed
AUG 5, 2026604,497,300Not observed
AUG 4, 2026600,112,804Not observed
AUG 3, 2026583,240,402Not observed
AUG 2, 2026568,034,330Not observed
AUG 1, 2026573,846,123Not observed
JUL 31, 2026583,898,727Not observed
JUL 30, 2026583,683,633Not observed
JUL 29, 2026581,278,130Not observed
JUL 28, 2026577,857,638Not observed
JUL 27, 2026562,520,846Not observed
JUL 26, 2026548,075,191Not observed

Facts from the registry

Latest version
v1.4.0
7 versions
First published
AUG 14, 2012
Last release
SEP 6, 2016
10y ago
Licence
ISC
Links
npm page
Homepage · github.com
Source · github.com

Repository

Not in the Crest catalog

isaacs/once

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 · v1.4.0

Runtime 1

  • wrappy1

Related packages

No related package is in the catalog yet.

Related news

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