docs

site/doc/pages/2_DValue_is_list.txt

@@ -0,0 +1,19 @@
+:sig
+bool DValue::is_list() const
+
+:params
+return value : true when the value is an array with keys 0..n-1
+
+:see
+0_DValue
+2_DValue_set_array
+2_DValue_push
+
+:content
+Returns true for map-shaped values that represent a list. An empty map is a list only if it was explicitly put in list mode with `set_array()` or by list operations. Non-empty lists must have canonical numeric string keys from `0` through `size - 1`.
+
+```cpp
+DValue first; first = "first";
+DValue items; items.set_array(); items.push(first);
+if(items.is_list()) print(json_encode(items));
+```