Why is `== null` preferable to `is Null`?

Question

In Dart, checking for a value to be == null seems similar to checking if it is Null. Why is the former more preferable?

Answer 1

It is the type of comparison you are doing. In == null, you are comparing an object/primative to null whereas in the latter, is Null, null is an object. It makes no difference in the compiler.

== null is more favourable as the two being compared could be both primitives, which saves memory in the system.

Answer 2

== null is familiar to developers coming from other popular languages.