fixed the es lint errors

Author: Syed Faizan

lib/array.js

@@ -798,11 +798,12 @@ helpers.withSort = function(array, prop, options) {
   return result;
 };
 
-helpers.unique = function(array, options){
+helpers.unique = function(array, options) {
   if (util.isUndefined(array)) return '';
 
-  return array.filter( function(item, index, self){
-    return self.indexOf(item) == index;
+  return array.filter(function(item, index, self) {
+    return self.indexOf(item) === index;
   });
 
-}
+};
+

test/array.js

@@ -7,7 +7,7 @@ var helpers = require('..');
 helpers.array({handlebars: hbs});
 helpers.string({handlebars: hbs});
 
-var context = {array: ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'], duplicate: ['a','b','b','c','d','b','f','a','g']};
+var context = {array: ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'], duplicate: [ 'a', 'b', 'b', 'c', 'd', 'b', 'f', 'a', 'g']};
 
 describe('array', function() {
   describe('after', function() {
@@ -480,15 +480,15 @@ describe('array', function() {
     });
   });
 
-  describe('unique', function(){
-    it('should return empty string when the array is null', function(){
-      var fn = hbs.compile('{{#unique}}{{this}}{{/unique}}')
-      assert.equal(fn(context), '');      
-    })
-    it('should return array with unique items', function(){
+  describe('unique', function() {
+    it('should return empty string when the array is null', function() {
+      var fn = hbs.compile('{{#unique}}{{this}}{{/unique}}');
+      assert.equal(fn(context), '');
+    });
+    it('should return array with unique items', function() {
       var fn = hbs.compile('{{#unique duplicate}}{{this}}{{/unique}}');
-      assert.equal(fn(context).toString(), 'a,b,c,d,f,g');      
-    })
+      assert.equal(fn(context).toString(), 'a,b,c,d,f,g');
+    });
   });
 
 });