1 files changed, 42 insertions, 0 deletions
diff --git a/node_modules/es5-ext/string/random.js b/node_modules/es5-ext/string/random.js
new file mode 100644
index 000000000..4ecec7fcd
--- /dev/null
+++ b/node_modules/es5-ext/string/random.js
@@ -0,0 +1,42 @@
+"use strict";
+
+var isValue         = require("../object/is-value")
+  , toNaturalNumber = require("../number/to-pos-integer");
+
+var generated = Object.create(null), random = Math.random, uniqTryLimit = 100;
+
+var getChunk = function () {
+	return random()
+		.toString(36)
+		.slice(2);
+};
+
+var getString = function (/* length */) {
+	var str = getChunk(), length = arguments[0];
+	if (!isValue(length)) return str;
+	while (str.length < length) str += getChunk();
+	return str.slice(0, length);
+};
+
+module.exports = function (/* options */) {
+	var options = Object(arguments[0]), length = options.length, isUnique = options.isUnique;
+
+	if (isValue(length)) length = toNaturalNumber(length);
+
+	var str = getString(length);
+	if (isUnique) {
+		var count = 0;
+		while (generated[str]) {
+			if (++count === uniqTryLimit) {
+				throw new Error(
+					"Cannot generate random string.\n" +
+						"String.random is not designed to effectively generate many short and " +
+						"unique random strings"
+				);
+			}
+			str = getString(length);
+		}
+		generated[str] = true;
+	}
+	return str;
+};