perf: use a closure instead of binding

apache · Jan 9, 2019 · 47f0677 · 47f0677
1 parent 380dbc7
commit 47f0677
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/js/src/compute/predicate.ts b/js/src/compute/predicate.ts
@@ -76,8 +76,9 @@ export class Col<T= any> extends Value<T> {
             }
             if (this.colidx < 0) { throw new Error(`Failed to bind Col "${this.name}"`); }
         }
-        this.vector = batch.getChildAt(this.colidx)!;
-        return this.vector.get.bind(this.vector);
+
+        const vec = this.vector = batch.getChildAt(this.colidx)!;
+        return (idx: number) => vec.get(idx);
     }
 }