Expected an assignment or function call and instead saw an expression, but it's legal

[frederikhors]

Using this:

let canRender

$: canRender, console.log('HI')

is perfectly fine and it works.

But I get an error:

Expected an assignment or function call and instead saw an expression (eslint, no-unused-expressions)

Why?

[jasonlyu123]

This is because the canRender expression causing eslint to report linting error.