<img src="media/logo.svg" alt="mimic-fn" width="400">
<br>
> 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
import mimicFunction from 'mimic-fn';
function foo() {}
foo.unicorn = '🦄';
function wrapper() {
return foo();
}
console.log(wrapper.name);
//=> 'wrapper'
mimicFunction(wrapper, foo);
console.log(wrapper.name);
//=> 'foo'
console.log(wrapper.unicorn);
//=> '🦄'
console.log(String(wrapper));
//=> '/* Wrapped with wrapper() */\nfunction foo() {}'
```
## API
### mimicFunction(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
---
<div align="center">
<b>
<a href="https://tidelift.com/subscription/pkg/npm-mimic-fn?utm_source=npm-mimic-fn&utm_medium=referral&utm_campaign=readme">Get professional support for this package with a Tidelift subscription</a>
</b>
<br>
<sub>
Tidelift helps make open source sustainable for maintainers while giving companies<br>assurances about security, maintenance, and licensing for their dependencies.
</sub>
</div>
Generated by dwww version 1.15 on Sun Jun 16 12:49:15 CEST 2024.