[![Build Status](https://travis-ci.org/sindresorhus/mimic-fn.svg?branch=master)](https://travis-ci.org/sindresorhus/mimic-fn) > Make a function mimic another one Useful when you wrap a function in another function and like to preserve the original name and other properties. ## Install ``` $ npm install mimic-fn ``` ## Usage ```js const mimicFn = require('mimic-fn'); function foo() {} foo.unicorn = '🦄'; function wrapper() { return foo(); } console.log(wrapper.name); //=> 'wrapper' mimicFn(wrapper, foo); console.log(wrapper.name); //=> 'foo' console.log(wrapper.unicorn); //=> '🦄' console.log(String(wrapper)); //=> '/* Wrapped with wrapper() */\nfunction foo() {}' ``` ## API ### mimicFn(to, from, options?) Modifies the `to` function to mimic the `from` function. Returns the `to` function. `name`, `displayName`, and any other properties of `from` are copied. The `length` property is not copied. Prototype, class, and inherited properties are copied. `to.toString()` will return the same as `from.toString()` but prepended with a `Wrapped with to()` comment. #### to Type: `Function` Mimicking function. #### from Type: `Function` Function to mimic. #### options Type: `object` ##### ignoreNonConfigurable Type: `boolean`
Default: `false` Skip modifying [non-configurable properties](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/getOwnPropertyDescriptor#Description) instead of throwing an error. ## Related - [rename-fn](https://github.com/sindresorhus/rename-fn) - Rename a function - [keep-func-props](https://github.com/ehmicky/keep-func-props) - Wrap a function without changing its name and other properties ---

Get professional support for this package with a Tidelift subscription
_{Tidelift helps make open source sustainable for maintainers while giving companies
assurances about security, maintenance, and licensing for their dependencies.}

c	File Name	Size	T	Date
-	changelog.Debian.gz	576	gz	2020-03-08 13:00:56
-	copyright	1479	%	2020-03-08 13:00:27
-	readme.md	2205	md	2019-06-13 16:05:46

🌲 / sam server usr share doc node-mimic-fn

control-panel