lepu-test-platform-web/node_modules/onetime
zhangbo db3ebd0df0 把之前百度云的代码移植过来 2024-01-03 15:23:47 +08:00
..
index.js 把之前百度云的代码移植过来 2024-01-03 15:23:47 +08:00
license 把之前百度云的代码移植过来 2024-01-03 15:23:47 +08:00
package.json 把之前百度云的代码移植过来 2024-01-03 15:23:47 +08:00
readme.md 把之前百度云的代码移植过来 2024-01-03 15:23:47 +08:00

readme.md

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