chore: golf & tweak perf

lukeed · Jan 27, 2021 · 8065a48 · 8065a48
1 parent a62a6c6
commit 8065a48
Showing 1 changed file with 4 additions and 5 deletions.
diff --git a/src/index.js b/src/index.js
@@ -1,10 +1,9 @@
 export default function (obj, keys, val) {
 	keys.split && (keys=keys.split('.'));
 	var i=0, l=keys.length, t=obj, x, k;
-	for (; i < l; ++i) {
-		k = keys[i];
-		if (k == '__proto__' || k == 'constructor' || k == 'prototype') continue;
-		x = t[k];
-		t = t[k] = (i === l - 1 ? val : (x != null ? x : (!!~keys[i+1].indexOf('.') || !(+keys[i+1] > -1)) ? {} : []));
+	for (; i < l;) {
+		k = keys[i++];
+		if (k === '__proto__' || k === 'constructor' || k === 'prototype') continue;
+		t = t[k] = (i === l ? val : ((x=t[k]) != null ? x : (keys[i]*0 !== 0 || !!~keys[i].indexOf('.')) ? {} : []));
 	}
 }