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Polymer · Apr 13, 2019 · 70337ac · 70337ac
1 parent 61715f1
commit 70337ac
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/lib/mixins/property-effects.js b/lib/mixins/property-effects.js
@@ -96,6 +96,7 @@ function ensureOwnEffectMap(model, type, cloneArrays) {
     if (cloneArrays) {
       for (let p in effects) {
         let protoFx = effects[p];
+        // Perf optimization over Array.slice
         let instFx = effects[p] = Array(protoFx.length);
         for (let i=0; i<protoFx.length; i++) {
           instFx[i] = protoFx[i];