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

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);
//=> '🦄' 

API

It will copy over the properties name, length, displayName, and any custom properties you may have set.

mimicFn(to, from)

Modifies the to function and returns it.

to

Type: Function

Mimicking function.

from

Type: Function

Function to mimic.

Related

• rename-fn - Rename a function
• keep-func-props - Wrap a function without changing its name, length and other properties

License

MIT © Sindre Sorhus