Does using within actually have any perf benefits?

[hrmJ]

Hi,

I have some tests that initially render a rather large DOM. I have been under the assumption that using queries like screen.getBy... would potentially be slower than queries narrowed down using within . Should this be the case? I don't seem to notice a difference and actually the within-queries often seem slower. Using within does give a lot nicer error output when the element searched for is not found, but is that the only benefit?

[MatanBobi]

The only thing that happens in within is we're binding the queries to the element, so instead of using screen which will run document.body.querySelectorAll, we'll run element.querySelectorAll. I think it will have a performance impact only if the document.body is really, really big. I believe that within's purpose is not a performance boost rather than narrowing down the query to a specific area of a page.