perf(proxy): avoid has where possible

immerjs · Dec 16, 2018 · 4b9b637 · 4b9b637
1 parent 1803dd8
commit 4b9b637
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/src/immer.js b/src/immer.js
@@ -4,7 +4,6 @@ import {generatePatches} from "./patches"
 import {
     assign,
     each,
-    has,
     is,
     isDraft,
     isDraftable,
@@ -174,7 +173,7 @@ export class Immer {
                 // prettier-ignore
                 parent[prop] =
                     // Patches are never generated for assigned properties.
-                    patches && parent === root && !(state && has(state.assigned, prop))
+                    patches && parent === root && !(state && state.assigned[prop])
                         ? this.finalize(value, path.concat(prop), patches, inversePatches)
                         : this.finalize(value)