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Update ESLint to v3.8.0. * Installed with `npm install --production` to avoid installing unnecessary dev files * Used `dmn -f clean` to further eliminate unneeded files PR-URL: https://github.com/nodejs/node/pull/9112 Reviewed-By: Teddy Katz <teddy.katz@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Roman Reiss <me@silverwind.io> |
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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
Usage
let i = 0;
const foo = onetime(() => i++);
foo(); //=> 0
foo(); //=> 0
foo(); //=> 0
API
onetime(function, [shouldThrow])
function
Type: function
Function that should only be called once.
shouldThrow
Type: boolean
Default: false
Set to true if you want it to fail with a nice and descriptive error when called more than once.
License
MIT © Sindre Sorhus