npmpackage.info

Gathering detailed insights and metrics for onetime

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Gathering detailed insights and metrics for onetime

onetime - 7.0.0 | npmpackage.info

onetime

Ensure a function is only called once

7.0.0

162

MIT

JavaScript

826.00 B

12,705,054,339 4.2

Installations

npm install onetime

Developer Guide

BETA

Typescript

Yes

Module System

ESM

Min. Node Version

>=18

Node Version

20.9.0

NPM Version

9.2.0 Pull Requests

Open

0

Total

9

Closed

1

Merged

8

Issues

Open

1

Total

5

Closed

4

Releases

v7.0.0

Updated on Nov 05, 2023

v6.0.0

Updated on Apr 08, 2021

v5.1.2

Updated on Aug 09, 2020

v5.1.1

Updated on Aug 02, 2020

v5.1.0

Updated on Apr 02, 2019

v5.0.0

Updated on Mar 08, 2019

View All 8 releases

Languages

JavaScript

TypeScript

JavaScript (81.2%)

TypeScript (18.8%)

Developer

sindresorhus

Download Statistics

Total Downloads

12,705,054,339

Last Day

14,565,211

Last Week

79,505,248

Last Month

335,999,729

Last Year

3,544,229,647

GitHub Statistics

MIT License

162 Stars

47 Commits

14 Forks

7 Watchers

1 Branches

9 Contributors

Updated on Aug 24, 2024

Bundle Size

1.66 kB

Minified

826.00 B

Minified + Gzipped

Bundlephobia

Sponsor this package

https://github.com/sponsors/sindresorhus

Maintainers

View All 9 Contributors

Package Meta Information

Latest Version

7.0.0

Package Id

onetime@7.0.0

Unpacked Size

5.32 kB

Size

2.31 kB

File Count

NPM Version

9.2.0

Node Version

20.9.0

Published on

Nov 05, 2023

Total Downloads

Cumulative downloads

Total Downloads

12,705,054,339

Last Day

47.8%

14,565,211

Compared to previous day

Last Week

5.9%

79,505,248

Compared to previous week

Last Month

-2.7%

335,999,729

Compared to previous month

Last Year

28.2%

3,544,229,647

Compared to previous year

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dependencies

mimic-function

Dev Dependencies

ava tsd xo

onetime

Ensure a function is only called once

When called multiple times it will return the return value from the first call.

Unlike the module once, this one isn't naughty and extending Function.prototype.

Install

1npm install onetime

Usage

1import onetime from 'onetime';
2
3let index = 0;
4
5const foo = onetime(() => ++index);
6
7foo(); //=> 1
8foo(); //=> 1
9foo(); //=> 1
10
11onetime.callCount(foo); //=> 3

1import onetime from 'onetime';
2
3const foo = onetime(() => {}, {throw: true});
4
5foo();
6
7foo();
8//=> Error: Function `foo` can only be called once

API

onetime(fn, options?)

Returns a function that only calls fn once.

fn

Type: Function

The function that should only be called once.

options

Type: object

throw

Type: boolean
Default: false

Throw an error when called more than once.

onetime.callCount(fn)

Returns a number representing how many times fn has been called.

Note: It throws an error if you pass in a function that is not wrapped by onetime.

1import onetime from 'onetime';
2
3const foo = onetime(() => {});
4
5foo();
6foo();
7foo();
8
9console.log(onetime.callCount(foo));
10//=> 3

fn

Type: Function

The function to get call count from.

Branch-Protection

Determines if the default and release branches are protected with GitHub's branch protection settings.

0

SAST

Determines if the project uses static code analysis.

Score

4.2

/10

Last Scanned on 2025-04-28

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