JavaScript alternative to "for each" loop

Question

According to the MDN page at for each...in loop, this construct is deprecated. Is there an alternative that does exactly the same thing? The for...of loop does not iterate over non-integer (own enumerable) properties. If there isn't an alternative, why did they deprecate it then?

Answer 1

To iterate over all the properties of an object obj, you may do this :

for (var key in obj) {
   console.log(key, obj[key]);
}

If you want to avoid inherited properties, you may do this :

for (var key in obj) {
   if (!obj.hasOwnProperty(key)) continue;
   console.log(key, obj[key]);
}