Javascript regular expressions match alphabetical or -

Question

I wanna catch words that begin with an uppercase followed with either [ab] or - but it don't seem to work. Here my regular expression I tried ^[AZ][-[az]] How can I fix that?

Answer 1

You're close. You just have one too many sets of square brackets.

/^[A-Z][a-z\-]/

Answer 2

You have an extra set of brackets in there:

var str = "A-abcd";
var str2 = "AA-abcd";

var patt = new RegExp("^[A-Z][-a-z]");
var res = patt.test(str);
console.log(res);  // True

var res = patt.test(str2);
console.log(res);  // False