GH-30863: [JS] Use a singleton StructRow proxy handler

apache · Oct 2, 2024 · 71590cd · 71590cd
1 parent 60f29e9
commit 71590cd
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/js/src/row/struct.ts b/js/src/row/struct.ts
@@ -39,7 +39,7 @@ export class StructRow<T extends TypeMap = any> {
  constructor(parent: Data<Struct<T>>, rowIndex: number) {
  this[kParent] = parent;
  this[kRowIndex] = rowIndex;
- return new Proxy(this, new StructRowProxyHandler());
+ return new Proxy(this, structRowProxyHandler);
  }
 
  public toArray() { return Object.values(this.toJSON()); }
@@ -157,3 +157,5 @@ class StructRowProxyHandler<T extends TypeMap = any> implements ProxyHandler<Str
  return false;
  }
 }
+
+const structRowProxyHandler = new StructRowProxyHandler();