How to convert type *runtime.RemoteObject to string?

[shelld3v]

Currently, I want to get the raw response from chromedp.EvaluateAsDevTools. And from #526, I can see that res object must be in *runtime.RemoteObject type. But how I can convert it back to a string? To check for something like if res == "hello"?

invalid operation: res == "hello" (mismatched types *"github.com/chromedp/cdproto/runtime".RemoteObject and string)

Thanks a lot for taking time to read this!

[shelld3v]

Another question: I am doing something like this:

chromedp.EvaluateAsDevTools(`window.fool = function (txt){return txt}`, &res),
chromedp.Evaluate(`window.foo('a')`, &res),

Does the res after chromedp.EvaluateAsDevTools affects the result from chromedp.Evaluate?

[ZekeLu]

for Q1:

if res.Type == "string" {
	val := string(res.Value)
	log.Println(val)
}

Please note that if the returned value is of type string (no undefined, you don't have to use runtime.RemoteObject. var res string should be more easy.

---

for Q2:

Try to combine the javascript code.

var res string

// ...
	chromedp.Evaluate("window.foo = function (txt){return txt};window.foo('a')", &res),
// ...

[shelld3v]

for Q2:

I have already thought about that, but what if the first evaluation returns an value, the second too, and I only want the second?

[ZekeLu]

@shelld3v You can have a test yourself.

[shelld3v]

@shelld3v You can have a test yourself.

I am wondering if window.foo = function (txt){return txt} returns anything