Why do TSLint and JSLint report empty blocks?

If you feel you dont want to use callback during certain scenarios you can modify the code

from

doSomething(() => {});

to

doSomething(() => undefined);

Substituting () => {} to this implies you dont care about this callback. and explicit typecasting will avoid implications.

Good luck.

Why does TSLint report above empty block as problem

To prevent mistakes. Perhaps the function was forgotten to be filled out. Recommend () => undefined as a noop.

More

If you want to disable it simply add "no-empty": false, to your tslint.json (globally disable) or disable it inline using a /* tslint:disable:no-empty */ comment.