Dia antes primera install

node_modules/stringify-parameters/lib/stringify-parameters.js

@@ -0,0 +1,29 @@
+'use strict';
+
+const unpackString = require('unpack-string');
+
+function stringifyParameters(fn) {
+	if (!fn || (fn.constructor !== String && fn.constructor !== Function)) {
+		return;
+	}
+
+	let fnString = fn.toString().replace(/^\s+|\s+$/g, '');
+	if (!fnString) {
+		return;
+	}
+
+	const isDeclaredWithFunctionKeyword = /^function/i;
+	const isNotArrowFunction = /^[^\s=>]+\(/i;
+
+	// Is an Arrow function with a parameter declared without parenthesis and with no default value
+	if (!isDeclaredWithFunctionKeyword.test(fnString) && !isNotArrowFunction.test(fnString)) {
+		let arrowWithoutParenthesis = fnString.match(/^(.*?)=>/);
+		if (arrowWithoutParenthesis) {
+			return unpackString(arrowWithoutParenthesis[1]).replace(/^\s+|\s+$/g, '');
+		}
+	}
+
+	return unpackString(fnString).replace(/^\s+|\s+$/g, '');
+}
+
+module.exports = stringifyParameters;