Run results for: delete vs assign to null

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36

Browser: Chrome 68

Operating system: Mac OS X 10.12.1

Device Platform: Desktop

Date tested: 5 years ago

Tests:

Delete
const master = { foo: 'bah', bah: 'foo', lorem: 'lorem' } const second = { ...master }; delete second.foo;
Assign to undefined
const master = { foo: 'bah', bah: 'foo', lorem: 'lorem' } const result = { ...master, foo: undefined };
Assign to null
const master = { foo: 'bah', bah: 'foo', lorem: 'lorem' } const result = { ...master, foo: null };