Package Exports
- feint
This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (feint) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.
Readme
feint
Make a given function do nothing at its first call
const feint = require('feint');
const fn = feint(() => 1);
fn(); //=> undefined
fn(); //=> 1
fn(); //=> 1Installation
npm install feintAPI
feint(fn)
fn: Function
Return: Function
It returns a new function that does nothing when it's called for the first time. From the second time on, the function performs normally.
const {existsSync, mkdirSync} = require('fs');
const feint = require('feint');
const feintMkdir = feint(mkdirSync);
feintMkdir('foo');
existsSync('foo'); //=> false
feintMkdir('foo');
existsSync('foo'); //=> true