How to know which typescript version running on angular 4 project

Question

So i did ng -v it shows me everything except typescript, so how can i check Typescript version of my angular 4 project.

Answer 1

Simple answer using yarn (since other answer were using npm)

This will list the dependencies using yarn then filter only typescript

yarn list --pattern typescript

Or you can simply check the content of yarn.lock file (equivalent of package-lock.json)

grep "typescript" yarn.lock