lodash / lodash

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	/**
	* Composes a function that returns the result of invoking the given functions
	* with the `this` binding of the created function, where each successive
	* invocation is supplied the return value of the previous.
	*
	* @since 3.0.0
	* @category Util
	* @param {Function[]} [funcs] The functions to invoke.
	* @returns {Function} Returns the new composite function.
	* @see flowRight
	* @example
	*
	* import add from 'lodash/add'
	*
	* function square(n) {
	* return n * n
	* }
	*
	* const addSquare = flow(add, square)
	* addSquare(1, 2)
	* // => 9
	*/
	function flow(...funcs) {
	const length = funcs.length
	let index = length
	while (index--) {
	if (typeof funcs[index] !== 'function') {
	throw new TypeError('Expected a function')
	}
	}
	return function(...args) {
	let index = 0
	let result = length ? funcs[index].apply(this, args) : args[0]
	while (++index < length) {
	result = funcs[index].call(this, result)
	}
	return result
	}
	}

	export default flow

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