From 7bd986337a42acd6c73d59d04272f9c400e43c66 Mon Sep 17 00:00:00 2001
From: John-David Dalton <john.david.dalton@gmail.com>
Date: Tue, 24 Nov 2015 16:49:59 -0800
Subject: [PATCH] Add lazy `invokeMap`.

---
 lodash.js    |  9 +++++++++
 test/test.js | 21 +++++++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/lodash.js b/lodash.js
index 16598b7ff..cf7581a31 100644
--- a/lodash.js
+++ b/lodash.js
@@ -14051,6 +14051,15 @@
       return this.reverse().find(predicate);
     };
 
+    LazyWrapper.prototype.invokeMap = rest(function(path, args) {
+      if (typeof path == 'function') {
+        return new LazyWrapper(this);
+      }
+      return this.map(function(value) {
+        return baseInvokePath(value, path, args);
+      });
+    });
+
     LazyWrapper.prototype.reject = function(predicate) {
       predicate = getIteratee(predicate, 3);
       return this.filter(function(value) {
diff --git a/test/test.js b/test/test.js
index 031610567..591d35654 100644
--- a/test/test.js
+++ b/test/test.js
@@ -7148,6 +7148,27 @@
         assert.deepEqual(_.invokeMap([object], path), [1]);
       });
     });
+
+    QUnit.test('should support shortcut fusion', function(assert) {
+      assert.expect(2);
+
+      if (!isNpm) {
+        var count = 0,
+            method = function() { count++; return this.index; };
+
+        var array = lodashStable.times(LARGE_ARRAY_SIZE, function(index) {
+          return { 'index': index, 'method': method };
+        });
+
+        var actual = _(array).invokeMap('method').take(1).value();
+
+        assert.strictEqual(count, 1);
+        assert.deepEqual(actual, [0]);
+      }
+      else {
+        skipTest(assert, 2);
+      }
+    });
   }());
 
   /*--------------------------------------------------------------------------*/