Function getBefore

lib/ModuleFilenameHelpers.js:71–75

(strFn, token)

 * @returns {ReturnStringCallback} a function that returns the part of the string before the token
 */
const getBefore = (strFn, token) => () => {
	const str = strFn();
	const idx = str.lastIndexOf(token);
	return idx < 0 ? "" : str.slice(0, idx);
};

/**
 * Returns a function that returns a hash of the string