Add support for the remove().

Author: javadev

lodash-plugin/src/main/java/com/github/underscore/lodash/$.java

@@ -72,26 +72,30 @@ public Chain<List<T>> dropRightWhile(final Predicate<T> pred) {
             return new Chain<List<T>>($.dropRightWhile(value(), pred));
         }
 
-        public Chain<List<Object>> fill(Object value) {
+        public Chain<List<Object>> fill(final Object value) {
             return new Chain<List<Object>>($.fill((List<Object>) value(), value));
         }
 
-        public Chain<List<Object>> fill(Object value, Integer start, Integer end) {
+        public Chain<List<Object>> fill(final Object value, final Integer start, final Integer end) {
             return new Chain<List<Object>>($.fill((List<Object>) value(), value, start, end));
         }
 
         public Chain<List<?>> flattenDeep() {
             return new Chain<List<?>>($.flattenDeep((List<?>) value()));
         }
 
-        public Chain<List<Object>> pull(Object ... values) {
+        public Chain<List<Object>> pull(final Object ... values) {
             return new Chain<List<Object>>($.pull((List<Object>) value(), values));
         }
 
-        public Chain<List<Object>> pullAt(Integer ... indexes) {
+        public Chain<List<Object>> pullAt(final Integer ... indexes) {
             return new Chain<List<Object>>($.pullAt((List<Object>) value(), indexes));
         }
 
+        public Chain<List<T>> remove(final Predicate<T> pred) {
+            return new Chain<List<T>>($.remove(value(), pred));
+        }
+
         public Chain<List<T>> xor(final List<T> list) {
             return new Chain<List<T>>($.xor(value(), list));
         }
@@ -221,7 +225,7 @@ public List<Object> pull(Object ... values) {
         return pull((List<Object>) getIterable(), values);
     }
 
-    public static List<Object> pullAt(final List<Object> list, Integer ... indexes) {
+    public static List<Object> pullAt(final List<Object> list, final Integer ... indexes) {
         final List<Object> result = newArrayList();
         final List<Integer> indexesList = Arrays.asList(indexes);
         int index = 0;
@@ -236,10 +240,26 @@ public static List<Object> pullAt(final List<Object> list, Integer ... indexes)
         return result;
     }
 
-    public List<Object> pullAt(Integer ... indexes) {
+    public List<Object> pullAt(final Integer ... indexes) {
         return pullAt((List<Object>) getIterable(), indexes);
     }
 
+    public static <T> List<T> remove(final List<T> list, final Predicate<T> pred) {
+        final List<T> result = newArrayList();
+        for (final Iterator<T> iterator = list.iterator(); iterator.hasNext(); ) {
+            final T object = iterator.next();
+            if (pred.apply(object)) {
+                result.add(object);
+                iterator.remove();
+            }
+        }
+        return result;
+    }
+
+    public List<T> remove(final Predicate<T> pred) {
+        return remove((List<T>) getIterable(), pred);
+    }
+
     public static <T> List<T> xor(final List<T> ... lists) {
         int index = -1;
         int length = lists.length;

lodash-plugin/src/test/java/com/github/underscore/lodash/LodashTest.java

@@ -247,6 +247,46 @@ public void pullAt() {
         assertEquals("[10, 20]", events.toString());
     }
 
+/*
+var array = [1, 2, 3, 4];
+var evens = _.remove(array, function(n) {
+  return n % 2 == 0;
+});
+
+console.log(array);
+// → [1, 3]
+
+console.log(evens);
+// → [2, 4]
+*/
+    @Test
+    public void remove() {
+        List<Integer> array = new ArrayList<Integer>(asList(1, 2, 3, 4));
+        List<Integer> evens = $.remove(array, new Predicate<Integer>() {
+            public Boolean apply(final Integer n) {
+                return n % 2 == 0;
+            }
+        });
+        assertEquals("[1, 3]", array.toString());
+        assertEquals("[2, 4]", evens.toString());
+        array = new ArrayList<Integer>(asList(1, 2, 3, 4));
+        evens = new $(array).remove(new Predicate<Integer>() {
+            public Boolean apply(final Integer n) {
+                return n % 2 == 0;
+            }
+        });
+        assertEquals("[1, 3]", array.toString());
+        assertEquals("[2, 4]", evens.toString());
+        array = new ArrayList<Integer>(asList(1, 2, 3, 4));
+        evens = $.chain(array).remove(new Predicate<Integer>() {
+            public Boolean apply(final Integer n) {
+                return n % 2 == 0;
+            }
+        }).value();
+        assertEquals("[1, 3]", array.toString());
+        assertEquals("[2, 4]", evens.toString());
+    }
+
 /*
 _.xor([1, 2], [4, 2]);
 // → [1, 4]
@@ -258,6 +298,7 @@ public void xor() {
         assertEquals("[1, 4]", $.chain(asList(1, 2)).xor(asList(4, 2)).toString());
     }
 
+
     @Test
     public void main() {
         $.main(new String[] {});