2 files changed, 10 insertions, 0 deletions
diff --git a/src/eval/array.rs b/src/eval/array.rs
index 3006c91f..8dcbd5a9 100644
--- a/src/eval/array.rs
+++ b/src/eval/array.rs
@@ -41,6 +41,11 @@ impl Array {
         Self(vec)
     }
 
+    /// Return `true` if the length is 0.
+    pub fn is_empty(&self) -> bool {
+        self.0.len() == 0
+    }
+
     /// The length of the array.
     pub fn len(&self) -> i64 {
         self.0.len() as i64
diff --git a/src/eval/str.rs b/src/eval/str.rs
index d867e19c..22b5498b 100644
--- a/src/eval/str.rs
+++ b/src/eval/str.rs
@@ -34,6 +34,11 @@ impl Str {
         Self(EcoString::new())
     }
 
+    /// Return `true` if the length is 0.
+    pub fn is_empty(&self) -> bool {
+        self.0.len() == 0
+    }
+
     /// The length of the string in bytes.
     pub fn len(&self) -> i64 {
         self.0.len() as i64