Object methods assigned to variables or function arguments fail when invoked

Question

I\'m learning javascript right now, seems like beautiful functional language to me, it is wonderful move from PHP, I should have done this earlier. Although, I cannot figure

Answer 1

I don't know if this is an acceptable solution, but you can do:

v1 = function(exp) { return (/[abc]/).test(exp); }
v1('a');