Why Devtool if TSC handles source maps?

[SetTrend]

There's on thought that's troubling me:

You can configure any type of source map output in tsconfig.json. So what's the reason for Devtool? What's the difference compared to tsconfig.json? What of the both takes precedence?

[alexander-akait]

Because typescript transpiles code to JS (i.e. source map from typescript to JS) and then webpack itself modify your code (i.e. source maps of your JS to source maps of webpack modified JS)

[SetTrend]

Thank you for this very informative answer. This question kept me troubling for quite a while.