What would be the fast (fast running script) way to send a random attack animation to the player?

Can you use strings in this way (pseudo code) :

int rannum = randomint(1, 3,)

string MyStringVar = "attackBackward"

if rannum = 1
MyStringVar = "attackforward"
elseif rannum = 2
MyStringVar = "attackleft"
else
MyStringVar = "attackright"
endif

Debug.SendAnimationEvent(target, "MyStringVar")

You would probably type the last line without the quote marks since you're referencing a variable.