ignore-errors
(ignore-errors form...)
Evaluates the forms and returns the value of the last one; when an error is signaled, returns nil instead (with the condition object as the syntactic-tier secondary value). Sugar over (handler-case (progn form...) (error (c) (values nil c))) — see handler-case.
Like handler-case it is supported on every backend except --no-gc; runtime traps remain uncatchable on the wasm-GC backends — see handler-case.