Bump to v3.0.0.

string/repeat.js

@@ -0,0 +1,50 @@
+import baseToString from '../internal/baseToString';
+import root from '../internal/root';
+
+/** Native method references. */
+var floor = Math.floor;
+
+/* Native method references for those with the same name as other `lodash` methods. */
+var nativeIsFinite = root.isFinite;
+
+/**
+ * Repeats the given string `n` times.
+ *
+ * @static
+ * @memberOf _
+ * @category String
+ * @param {string} [string=''] The string to repeat.
+ * @param {number} [n=0] The number of times to repeat the string.
+ * @returns {string} Returns the repeated string.
+ * @example
+ *
+ * _.repeat('*', 3);
+ * // => '***'
+ *
+ * _.repeat('abc', 2);
+ * // => 'abcabc'
+ *
+ * _.repeat('abc', 0);
+ * // => ''
+ */
+function repeat(string, n) {
+  var result = '';
+  string = baseToString(string);
+  n = +n;
+  if (n < 1 || !string || !nativeIsFinite(n)) {
+    return result;
+  }
+  // Leverage the exponentiation by squaring algorithm for a faster repeat.
+  // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.
+  do {
+    if (n % 2) {
+      result += string;
+    }
+    n = floor(n / 2);
+    string += string;
+  } while (n);
+
+  return result;
+}
+
+export default repeat;