fix: remove bug in addWitnesses() when target is the only child element

subugoe · Oct 18, 2024 · e194ffc · e194ffc
1 parent 1943dc4
commit e194ffc
Showing 1 changed file with 9 additions and 2 deletions.
diff --git a/src/utils/annotations.js b/src/utils/annotations.js
@@ -248,10 +248,17 @@ export function addWitness(target, witness, color) {
   if (targetIndex < 0) return;
 
   const witnessEl = createWitnessEl(witness, color)
-  const isWrapper = parentEl.children[targetIndex-1].classList.contains("witnesses")
+
+  let isWrapper = false
+  if (parentEl.children.length === 1) {
+    // target is the only child element
+    isWrapper = false
+  } else {
+    isWrapper = parentEl.children[targetIndex-1].classList.contains("witnesses")
+  }
 
   if (isWrapper) {
-    let wrapper = parentEl.children[targetIndex-1]
+    const wrapper = parentEl.children[targetIndex-1]
     wrapper.appendChild(witnessEl)
   } else {
       // witnesses wrapper which holds the witnesses 'chips' is not yet created -> we add the first witness