From 9961ddc2a82e7462987bb4c234ad08c3284d88f9 Mon Sep 17 00:00:00 2001
From: John-David Dalton <john.david.dalton@gmail.com>
Date: Sun, 3 Mar 2013 14:06:51 -0800
Subject: [PATCH] Ensure callback shorthands work with `_.uniq`. [\ht @jden,
 @motowilliams]

Former-commit-id: d9a0e688414edc4167b5f8e9ca123bab587f8264
---
 build.js                      |  4 +-
 dist/lodash.compat.js         |  4 +-
 dist/lodash.compat.min.js     | 75 ++++++++++++++++++-----------------
 dist/lodash.js                |  4 +-
 dist/lodash.min.js            | 70 ++++++++++++++++----------------
 dist/lodash.underscore.js     |  4 +-
 dist/lodash.underscore.min.js | 56 +++++++++++++-------------
 lodash.js                     |  4 +-
 test/test.js                  | 12 ++++++
 9 files changed, 123 insertions(+), 110 deletions(-)

diff --git a/build.js b/build.js
index a7d3986fa..a06df7f13 100755
--- a/build.js
+++ b/build.js
@@ -2112,12 +2112,12 @@
           '      result = [],',
           '      seen = result;',
           '',
-          "  if (typeof isSorted == 'function') {",
+          "  if (typeof isSorted != 'boolean' && isSorted != null) {",
           '    thisArg = callback;',
           '    callback = isSorted;',
           '    isSorted = false;',
           '  }',
-          '  if (callback) {',
+          '  if (callback != null) {',
           '    seen = [];',
           '    callback = createCallback(callback, thisArg);',
           '  }',
diff --git a/dist/lodash.compat.js b/dist/lodash.compat.js
index 40c38176d..ca2a763f6 100644
--- a/dist/lodash.compat.js
+++ b/dist/lodash.compat.js
@@ -3943,7 +3943,7 @@
           seen = result;
 
       // juggle arguments
-      if (typeof isSorted == 'function') {
+      if (typeof isSorted != 'boolean' && isSorted != null) {
         thisArg = callback;
         callback = isSorted;
         isSorted = false;
@@ -3953,7 +3953,7 @@
       if (isLarge) {
         var cache = {};
       }
-      if (callback) {
+      if (callback != null) {
         seen = [];
         callback = createCallback(callback, thisArg);
       }
diff --git a/dist/lodash.compat.min.js b/dist/lodash.compat.min.js
index 6890e88ab..a0efe9a77 100644
--- a/dist/lodash.compat.min.js
+++ b/dist/lodash.compat.min.js
@@ -4,40 +4,41 @@
  * Build: `lodash -o ./dist/lodash.compat.js`
  * Underscore.js 1.4.4 underscorejs.org/LICENSE
  */
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diff --git a/dist/lodash.js b/dist/lodash.js
index 9c2a8fb65..c4c3d02f8 100644
--- a/dist/lodash.js
+++ b/dist/lodash.js
@@ -3787,7 +3787,7 @@
           seen = result;
 
       // juggle arguments
-      if (typeof isSorted == 'function') {
+      if (typeof isSorted != 'boolean' && isSorted != null) {
         thisArg = callback;
         callback = isSorted;
         isSorted = false;
@@ -3797,7 +3797,7 @@
       if (isLarge) {
         var cache = {};
       }
-      if (callback) {
+      if (callback != null) {
         seen = [];
         callback = createCallback(callback, thisArg);
       }
diff --git a/dist/lodash.min.js b/dist/lodash.min.js
index 0a6ad45e4..7d646c33f 100644
--- a/dist/lodash.min.js
+++ b/dist/lodash.min.js
@@ -4,38 +4,38 @@
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diff --git a/dist/lodash.underscore.js b/dist/lodash.underscore.js
index a5de310d0..d9f7ac189 100644
--- a/dist/lodash.underscore.js
+++ b/dist/lodash.underscore.js
@@ -3175,12 +3175,12 @@
         result = [],
         seen = result;
   
-    if (typeof isSorted == 'function') {
+    if (typeof isSorted != 'boolean' && isSorted != null) {
       thisArg = callback;
       callback = isSorted;
       isSorted = false;
     }
-    if (callback) {
+    if (callback != null) {
       seen = [];
       callback = createCallback(callback, thisArg);
     }
diff --git a/dist/lodash.underscore.min.js b/dist/lodash.underscore.min.js
index 2fc0737eb..bd32ea228 100644
--- a/dist/lodash.underscore.min.js
+++ b/dist/lodash.underscore.min.js
@@ -4,31 +4,31 @@
  * Build: `lodash underscore -o ./dist/lodash.underscore.js`
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diff --git a/lodash.js b/lodash.js
index 4de2c37d4..487f45a17 100644
--- a/lodash.js
+++ b/lodash.js
@@ -3950,7 +3950,7 @@
           seen = result;
 
       // juggle arguments
-      if (typeof isSorted == 'function') {
+      if (typeof isSorted != 'boolean' && isSorted != null) {
         thisArg = callback;
         callback = isSorted;
         isSorted = false;
@@ -3960,7 +3960,7 @@
       if (isLarge) {
         var cache = {};
       }
-      if (callback) {
+      if (callback != null) {
         seen = [];
         callback = createCallback(callback, thisArg);
       }
diff --git a/test/test.js b/test/test.js
index 126754dba..22cd5d201 100644
--- a/test/test.js
+++ b/test/test.js
@@ -2610,6 +2610,18 @@
 
       deepEqual(actual, expected);
     });
+
+    _.each({
+      'an object': ['a'],
+      'a number': 0,
+      'a string': '0'
+    },
+    function(callback, key) {
+      test('should work with ' + key + ' for `callback`', function() {
+        var actual = _.uniq([['a'], ['b'], ['a']], callback);
+        deepEqual(actual, [['a'], ['b']]);
+      });
+    });
   }());
 
   /*--------------------------------------------------------------------------*/