implement cloneNode

observablehq · Aug 6, 2024 · 4324fa0 · 4324fa0
1 parent 5478728
commit 4324fa0
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/docs/components/PlotRender.js b/docs/components/PlotRender.js
@@ -90,6 +90,12 @@ class Element {
     child.parentNode = this;
     return child;
   }
+  cloneNode(deep) {
+    const clone = new Element(this.ownerDocument, this.tagName);
+    clone.attributes = {...this.attributes};
+    if (deep) clone.children = this.children.map((child) => child.cloneNode(deep));
+    return clone;
+  }
   querySelector() {
     return null;
   }