Async code and promises

'await' in non-async function  

Reports a usage of await in a function that was possibly intended to be async but is actually missing the async modifier.

Missing await for an async function call  

Reports an async function call without an expected await prefix inside an async function.

Redundant 'await' expression  

Reports a redundant usage of await, such as await await, or awaiting a non-promise result.

Result of method call returning a promise is ignored  

Reports a function call that returns a Promise that is not used later.

Top-level 'await' expression  

Reports a usage of a top-level await expression.