Description
Useful when you wrap a function in another function and like to preserve the original name and other properties.
mimic-fn alternatives and similar libraries
Based on the "Functional Programming" category.
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README
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);
//=> '🦄'
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 instead of throwing an error.
Related
- rename-fn - Rename a function
- keep-func-props - Wrap a function without changing its name and other properties
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