Value
A JS expression evaluating to the
isRouteErrorResponse function reference.
Details
Returns a JS reference to the isRouteErrorResponse
type guard. Use it inside an errorElement render callback to branch
on whether the error came from a thrown Response
(e.g. throw new Response(..., { status: 404 })) or from arbitrary
code. Pair with useRouteError.
Calling isRouteErrorResponse() from R returns a JS
expression that evaluates, in the browser, to the upstream
isRouteErrorResponse function. Interpolate it inside the
render string of useRouteError() as shown below.
For convenience, the same function is also reachable inside any
user-authored JS string as
window.jsmodule['@/reactRouter'].helpers.isRouteErrorResponse.
Examples
if (FALSE) { # \dontrun{
useRouteError(render = JS(paste0(
"e => ", isRouteErrorResponse(),
"(e) ? <p>HTTP {e.status}</p> : <p>Unknown error</p>"
)))
} # }