I don’t have much experience with TS, but in other strongly typed language it goes even further than string vs number.
For example you can have two numbers Distance and TimeInSeconds and even though they are both numbers, the type system can make sure that you won’t do distance+time.
It can also let you do distance/time and return Speed type.
It will prevent many logical errors even though everything is technically a number.
I don’t have much experience with TS, but in other strongly typed language it goes even further than string vs number.
For example you can have two numbers Distance and TimeInSeconds and even though they are both numbers, the type system can make sure that you won’t do distance+time.
It can also let you do distance/time and return Speed type.
It will prevent many logical errors even though everything is technically a number.