Make _.repeat default n to 1 instead of 0.

lodash.js

@@ -13398,7 +13398,8 @@
      * @since 3.0.0
      * @category String
      * @param {string} [string=''] The string to repeat.
-     * @param {number} [n=0] The number of times to repeat the string.
+     * @param {number} [n=1] The number of times to repeat the string.
+     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
      * @returns {string} Returns the repeated string.
      * @example
      *
@@ -13411,8 +13412,13 @@
      * _.repeat('abc', 0);
      * // => ''
      */
-    function repeat(string, n) {
-      return baseRepeat(toString(string), toInteger(n));
+    function repeat(string, n, guard) {
+      if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) {
+        n = 1;
+      } else {
+        n = toInteger(n);
+      }
+      return baseRepeat(toString(string), n);
     }
 
     /**

test/test.js

@@ -18298,35 +18298,57 @@
   QUnit.module('lodash.repeat');
 
   (function() {
+    var string = 'abc';
+
     QUnit.test('should repeat a string `n` times', function(assert) {
       assert.expect(2);
 
       assert.strictEqual(_.repeat('*', 3), '***');
-      assert.strictEqual(_.repeat('abc', 2), 'abcabc');
+      assert.strictEqual(_.repeat(string, 2), 'abcabc');
     });
 
-    QUnit.test('should return an empty string for negative `n` or `n` of `0`', function(assert) {
+    QUnit.test('should treat falsey `n` values, except `undefined`, as `0`', function(assert) {
+      assert.expect(1);
+
+      var expected = lodashStable.map(falsey, function(value) {
+        return value === undefined ? string : '';
+      });
+
+      var actual = lodashStable.map(falsey, function(n, index) {
+        return index ? _.repeat(string, n) : _.repeat(string);
+      });
+
+      assert.deepEqual(actual, expected);
+    });
+
+    QUnit.test('should return an empty string if `n` is <= `0`', function(assert) {
       assert.expect(2);
 
-      assert.strictEqual(_.repeat('abc', 0), '');
-      assert.strictEqual(_.repeat('abc', -2), '');
+      assert.strictEqual(_.repeat(string, 0), '');
+      assert.strictEqual(_.repeat(string, -2), '');
     });
 
     QUnit.test('should coerce `n` to an integer', function(assert) {
-      assert.expect(4);
+      assert.expect(3);
 
-      assert.strictEqual(_.repeat('abc'), '');
-      assert.strictEqual(_.repeat('abc', '2'), 'abcabc');
-      assert.strictEqual(_.repeat('abc', 2.6), 'abcabc');
+      assert.strictEqual(_.repeat(string, '2'), 'abcabc');
+      assert.strictEqual(_.repeat(string, 2.6), 'abcabc');
       assert.strictEqual(_.repeat('*', { 'valueOf': alwaysThree }), '***');
     });
 
     QUnit.test('should coerce `string` to a string', function(assert) {
       assert.expect(2);
 
-      assert.strictEqual(_.repeat(Object('abc'), 2), 'abcabc');
+      assert.strictEqual(_.repeat(Object(string), 2), 'abcabc');
       assert.strictEqual(_.repeat({ 'toString': lodashStable.constant('*') }, 3), '***');
     });
+
+    QUnit.test('should work as an iteratee for methods like `_.map`', function(assert) {
+      assert.expect(1);
+
+      var actual = lodashStable.map(['a', 'b', 'c'], _.repeat);
+      assert.deepEqual(actual, ['a', 'b', 'c']);
+    });
   }());
 
   /*--------------------------------------------------------------------------*/