Difference between Obj.Prop.AnotherProp and Obj.Prop?.AnotherProp

Asked Apr 16 '20 at 12:31

Active Apr 16 '20 at 13:37

Viewed 50 times

var Obj = { Prop : { AnotherProp : "Hello World" } },
    log = console.log;

log( Obj.Prop.AnotherProp ) 
log( Obj.Prop?.AnotherProp ) // What does Prop`?` do?

// From Google Chrome and Node output is 
// Hello World
// Hello World

I am confused about calling Object Properties.

edited Apr 16 '20 at 13:37

asked Apr 16 '20 at 12:31

Mohammed

? is to state that the field is optional not required. – zakaiter Apr 16 '20 at 12:37
`log(Obj.AnotherProp.Name)` vs. `log(Obj.AnotherProp?.Name)` – Andreas Apr 16 '20 at 12:37

Difference between Obj.Prop.AnotherProp and Obj.Prop?.AnotherProp

0 Answers0