Files
react-native-devtools-frontend/node_modules/onetime
Paul Lewis 911c1b8a93 Updates node_modules
DISABLE_THIRD_PARTY_CHECK=Package needs updating with node_modules
Change-Id: I889f1b86c586e37307a3e13ad762aa56d1ece150
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/1946468
Commit-Queue: Paul Lewis <aerotwist@chromium.org>
Reviewed-by: Tim van der Lippe <tvanderlippe@chromium.org>
2019-12-02 14:54:54 +00:00
..
2019-10-21 08:08:56 +02:00
2019-10-21 08:08:56 +02:00
2019-12-02 14:54:54 +00:00
2019-10-21 08:08:56 +02:00

onetime Build Status

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 extending Function.prototype.

Install

$ npm install --save onetime

Usage

let i = 0;

const foo = onetime(() => i++);

foo(); //=> 0
foo(); //=> 0
foo(); //=> 0
const foo = onetime(() => {}, {throw: true});

foo();

foo();
//=> Error: Function `foo` can only be called once

API

onetime(fn, [options])

Returns a function that only calls fn once.

fn

Type: Function

Function that should only be called once.

options

Type: Object

throw

Type: boolean
Default: false

Throw an error when called more than once.

License

MIT © Sindre Sorhus