Add support for ARRAY.sort()

Signed-off-by: Flipez <code@brauser.io>
Flipez · Oct 30, 2022 · 29eb569 · 29eb569
1 parent 9091d92
commit 29eb569
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diff --git a/docs/docs/literals/array.md b/docs/docs/literals/array.md
@@ -61,6 +61,18 @@ Returns the last element of the array.
 ```
 
 
+### reverse()
+> Returns `ARRAY`
+
+Reverses the elements of the array
+
+
+```js
+🚀 > ["a", "b", 1, 2].reverse()
+=> [2, 1, "b", "a"]
+```
+
+
 ### size()
 > Returns `INTEGER`
 

diff --git a/object/array.go b/object/array.go
@@ -58,6 +58,24 @@ func (ao *Array) Add(items ...any) {
 
 func init() {
 	objectMethods[ARRAY_OBJ] = map[string]ObjectMethod{
+		"reverse": ObjectMethod{
+			Layout: MethodLayout{
+				Description: "Reverses the elements of the array",
+				Example: `🚀 > ["a", "b", 1, 2].reverse()
+=> [2, 1, "b", "a"]`,
+				ReturnPattern: Args(
+					Arg(ARRAY_OBJ),
+				),
+			},
+			method: func(o Object, _ []Object, _ Environment) Object {
+				ao := o.(*Array)
+
+				for i, j := 0, len(ao.Elements)-1; i < j; i, j = i+1, j-1 {
+					ao.Elements[i], ao.Elements[j] = ao.Elements[j], ao.Elements[i]
+				}
+				return ao
+			},
+		},
 		"size": ObjectMethod{
 			Layout: MethodLayout{
 				Description: "Returns the amount of elements in the array.",

diff --git a/object/array_test.go b/object/array_test.go
@@ -60,6 +60,7 @@ func TestArrayObjectMethods(t *testing.T) {
 		{`[2.0, "Go", 2.0].sort()`, "Array does contain either an object not INTEGER, FLOAT or STRING or is mixed"},
 		{`[true, "Go", true].sort()`, "Array does contain either an object not INTEGER, FLOAT or STRING or is mixed"},
 		{`[].sort()`, `[]`},
+		{`["a", "b", 1, 2].reverse()`, `[2, 1, "b", "a"]`},
 	}
 
 	testInput(t, tests)