flow like the river

VISUALIZACION/node_modules/sort-keys/index.js

@@ -0,0 +1,44 @@
+'use strict';
+var isPlainObj = require('is-plain-obj');
+
+module.exports = function (obj, opts) {
+	if (!isPlainObj(obj)) {
+		throw new TypeError('Expected a plain object');
+	}
+
+	opts = opts || {};
+
+	// DEPRECATED
+	if (typeof opts === 'function') {
+		opts = {compare: opts};
+	}
+
+	var deep = opts.deep;
+	var seenInput = [];
+	var seenOutput = [];
+
+	var sortKeys = function (x) {
+		var seenIndex = seenInput.indexOf(x);
+
+		if (seenIndex !== -1) {
+			return seenOutput[seenIndex];
+		}
+
+		var ret = {};
+		var keys = Object.keys(x).sort(opts.compare);
+
+		seenInput.push(x);
+		seenOutput.push(ret);
+
+		for (var i = 0; i < keys.length; i++) {
+			var key = keys[i];
+			var val = x[key];
+
+			ret[key] = deep && isPlainObj(val) ? sortKeys(val) : val;
+		}
+
+		return ret;
+	};
+
+	return sortKeys(obj);
+};