History

silverwind d9b8758f47 tools: update ESLint to 2.7.0 PR-URL: https://github.com/nodejs/node/pull/6132 Reviewed-By: Brian White <mscdex@mscdex.net> Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: thefourtheye <thechargingvolcano@gmail.com>		2016-04-20 16:24:21 -07:00
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package.json	tools: update ESLint to 2.7.0	2016-04-20 16:24:21 -07:00
readme.md

onetime

Only call a function 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

let i = 0;

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

foo(); //=> 0
foo(); //=> 0
foo(); //=> 0

Type: function

Function that should only be called once.

Type: boolean Default: false

Set to true if you want it to fail with a nice and descriptive error when called more than once.