How does second regex works in the following code?

Question

So I understand the first expression for capturing values between brackets but how does second one works with ".+" ,what does it mean?

var a="matrix(0.44,0,0,0.45,0,0)".match(/\(([^)]+)\)/)
var b="matrix(0.44,0,0,0.45,0,0)".match(/\((.+)\)/)

Answer 1

@Bagon thank you :)