Storing the output of a script in a macro variable

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Hello!

I am new to javascript and trying to store the result of a javascript script in a variable in my macro.
I have tried several ways, but never make it.
The idea would be something like this macro:

JavaScript:
await WaitForLoading();
await Delay(2000);
var weekday = await EvaluateScript ('var d=new Date(); var weekday=new Array("Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"); document.write("Today is " + weekday[d.getDay()])');
Alert (weekday);
await Delay(50000)
Exit();

The obvious intent is to have something like "Today is Tuesday" stored in "weekday" if the macro is executed on a tuesday.

Is there a way to get that done?

Thanks for your help in advance!!

 

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Wonderful!! Thank you!!