Tips on how to catch exception when calling a “syscall/js” operate? – Getting Assist

Howdy mate,
I’m experiencing using the syscall/js package deal and I need assistance to discover a method to catch exception on a name to a js operate.

Right here an instance:

worth := js.World().Get("window").Get("localStorage")
...

When you disable the entry to the localstorage into your browser then it elevate the next exception:

with no method to resume your wasm code.
Thanks for any assist

The documentation of syscall/js says that js.Worth.Get panics when a worth shouldn’t be a JavaScript object, so it is best to be capable of “catch the exception” similar to you’d get well from a panic in different Go code:

func tryGet(v js.Worth, p string) (consequence js.Worth, err error) {
    defer func() {
        if x := get well(); x != nil {
            var okay bool
            if err, okay = x.(error); !okay {
                err = fmt.Errorf("%v", x)
            }
        }
    }()
    return v.Get(p), nil
}