Add support for the fill().

Author: javadev

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

@@ -71,6 +71,14 @@ public Chain<List<T>> dropWhile(final Predicate<T> pred) {
         public Chain<List<T>> dropRightWhile(final Predicate<T> pred) {
             return new Chain<List<T>>($.dropRightWhile(value(), pred));
         }
+
+        public Chain<List<Object>> fill(Object value) {
+            return new Chain<List<Object>>($.fill((List<Object>) value(), value));
+        }
+
+        public Chain<List<Object>> fill(Object value, Integer start, Integer end) {
+            return new Chain<List<Object>>($.fill((List<Object>) value(), value, start, end));
+        }
     }
 
     public static Chain chain(final String item) {
@@ -145,14 +153,35 @@ public List<T> dropWhile(final Predicate<T> pred) {
     }
 
     public static <T> List<T> dropRightWhile(final Iterable<T> iterable, final Predicate<T> pred) {
-        final List<T> list = reverse(iterable);
-        return rest(list, findIndex(list, negate(pred)));
+        return dropWhile(reverse(iterable), pred);
     }
 
     public List<T> dropRightWhile(final Predicate<T> pred) {
         return dropRightWhile(getIterable(), pred);
     }
 
+    public static List<Object> fill(final List<Object> list, Object value) {
+        for (int index = 0; index < list.size(); index += 1) {
+            list.set(index, value);
+        }
+        return list;
+    }
+
+    public List<Object> fill(Object value) {
+        return fill((List<Object>) getIterable(), value);
+    }
+
+    public static List<Object> fill(final List<Object> list, Object value, Integer start, Integer end) {
+        for (int index = start; index < end; index += 1) {
+            list.set(index, value);
+        }
+        return list;
+    }
+
+    public List<Object> fill(Object value, Integer start, Integer end) {
+        return fill((List<Object>) getIterable(), value, start, end);
+    }
+
     public static void main(String ... args) {
         final String message = "Underscore-java-lodash is a lodash plugin for underscore-java.\n\n"
             + "For docs, license, tests, and downloads, see: http://javadev.github.io/underscore-java";

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

@@ -151,6 +151,42 @@ public Boolean apply(Integer n) {
         }).toString());
     }
 
+/*
+var array = [1, 2, 3];
+
+_.fill(array, 'a');
+console.log(array);
+// → ['a', 'a', 'a']
+
+_.fill(Array(3), 2);
+// → [2, 2, 2]
+
+_.fill([4, 6, 8], '*', 1, 2);
+// → [4, '*', 8]
+*/
+    @Test
+    public void fill() {
+        List<Object> array = new ArrayList<Object>(asList(1, 2, 3));
+        $.fill(array, "a");
+        assertEquals("[a, a, a]", array.toString());
+        array = new ArrayList<Object>(asList(1, 2, 3));
+        new $(array).fill("a");
+        assertEquals("[a, a, a]", array.toString());
+        array = new ArrayList<Object>(asList(1, 2, 3));
+        $.chain(array).fill("a");
+        assertEquals("[a, a, a]", array.toString());
+        assertEquals("[2, 2, 2]", $.fill(new ArrayList<Object>(Collections.nCopies(3, 0)), 2).toString());
+        array = new ArrayList<Object>(asList(4, 6, 8));
+        $.fill(array, "*", 1, 2);
+        assertEquals("[4, *, 8]", array.toString());
+        array = new ArrayList<Object>(asList(4, 6, 8));
+        new $(array).fill("*", 1, 2);
+        assertEquals("[4, *, 8]", array.toString());
+        array = new ArrayList<Object>(asList(4, 6, 8));
+        $.chain(array).fill("*", 1, 2);
+        assertEquals("[4, *, 8]", array.toString());
+    }
+
     @Test
     public void main() {
         $.main(new String[] {});