I am not a big fan of the first example. If all that a function is doing is pasting its argument into a template string, then I'd rather see that pattern expressed explicitly in a single line of code than have to mentally infer this pattern myself by reading two separately expressed cases in six lines of code.
(It's not that big of a deal, but when reading through a lot of code to figure out what is going on, these little extra mental exertions start to really add up.)
And yeah, even the string interpolation seems kind of excessive when it's just appending _address. Js is even kinda infamous for how willing it is to do that with +.