What does '!.' mean in javascript?

Asked Dec 18 '19 at 05:35

Active Dec 18 '19 at 05:37

Viewed 41 times

I've been trying to find the documentation for when you can use !. in javascript/typescript

I know that instead of doing

if (object && object.property) {

}

We can do using !.

if (object!.property) {

}

Are you able to nest the properties? For example.

object!.property!.name

edited Dec 18 '19 at 05:37

Uwe Keim

asked Dec 18 '19 at 05:35

Kenneth Truong

2

Looks like TypeScript, [see here](https://stackoverflow.com/q/42273853/107625). – Uwe Keim Dec 18 '19 at 05:37
O you're right! Thanks! – Kenneth Truong Dec 18 '19 at 05:39
Does not exist in JavaScript, only in TypeScript. See the duplicate. – Robby Cornelissen Dec 18 '19 at 05:39

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