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author | Florian Dold <florian.dold@gmail.com> | 2017-05-28 00:38:50 +0200 |
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committer | Florian Dold <florian.dold@gmail.com> | 2017-05-28 00:40:43 +0200 |
commit | 7fff4499fd915bcea3fa93b1aa8b35f4fe7a6027 (patch) | |
tree | 6de9a1aebd150a23b7f8c273ec657a5d0a18fe3e /node_modules/onetime/readme.md | |
parent | 963b7a41feb29cc4be090a2446bdfe0c1f1bcd81 (diff) |
add linting (and some initial fixes)
Diffstat (limited to 'node_modules/onetime/readme.md')
-rw-r--r-- | node_modules/onetime/readme.md | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/node_modules/onetime/readme.md b/node_modules/onetime/readme.md new file mode 100644 index 000000000..95eb3b7c9 --- /dev/null +++ b/node_modules/onetime/readme.md @@ -0,0 +1,65 @@ +# onetime [](https://travis-ci.org/sindresorhus/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](https://github.com/isaacs/once), this one isn't naughty extending `Function.prototype`.* + + +## Install + +``` +$ npm install --save onetime +``` + + +## Usage + +```js +let i = 0; + +const foo = onetime(() => i++); + +foo(); //=> 0 +foo(); //=> 0 +foo(); //=> 0 +``` + +```js +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`<br> +Default: `false` + +Throw an error when called more than once. + + +## License + +MIT © [Sindre Sorhus](https://sindresorhus.com) |