Use while loop

src/index.js

@@ -1,7 +1,7 @@
 export function dset(obj, keys, val) {
 	keys.split && (keys=keys.split('.'));
 	var i=0, l=keys.length, t=obj, x, k;
-	for (; i < l;) {
+	while (i < l) {
 		k = keys[i++];
 		if (k === '__proto__' || k === 'constructor' || k === 'prototype') break;
 		t = t[k] = (i === l) ? val : (typeof(x=t[k])===typeof(keys)) ? x : (keys[i]*0 !== 0 || !!~(''+keys[i]).indexOf('.')) ? {} : [];