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Viewing / Editing File: index.d.ts

declare const mimicFn: {
	/**
	Make a function mimic another one. It will copy over the properties `name`, `length`, `displayName`, and any custom properties you may have set.

@param to - Mimicking function.
	@param from - Function to mimic.
	@returns The modified `to` function.

@example
	```
	import 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);
	//=> '🦄'
	```
	*/
	<
		ArgumentsType extends unknown[],
		ReturnType,
		FunctionType extends (...arguments: ArgumentsType) => ReturnType
	>(
		to: (...arguments: ArgumentsType) => ReturnType,
		from: FunctionType
	): FunctionType;

// TODO: Remove this for the next major release, refactor the whole definition to:
	// declare function mimicFn<
	//	ArgumentsType extends unknown[],
	//	ReturnType,
	//	FunctionType extends (...arguments: ArgumentsType) => ReturnType
	// >(
	//	to: (...arguments: ArgumentsType) => ReturnType,
	//	from: FunctionType
	// ): FunctionType;
	// export = mimicFn;
	default: typeof mimicFn;
};

export = mimicFn;

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Viewing / Editing File: index.d.ts

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