typescript: Use the Not obligatory Chaining Operator in TypeScript

This lesson introduces the ?. operator which is referred to as not obligatory chaining. We are going to take a look at how we will be able to use ?. to securely descend into an object with houses which doubtlessly dangle the values null or undefined. We are additionally going to learn to get admission to houses with an expression the usage of the ?.[] bracket notation and the best way to name purposes which would possibly not exist the usage of the ?.() syntax.