正则表达式与最后一场比赛

Question

I am trying write a regex to get last digit.

My string: name[0][0].

My regex: str.match(/d+/g)

It return all match. Can you help me make regex return only last match?

Answer 1

To get the last digit,

\d(?=\D*$)

To get the last number.

\d+(?=\D*$)

DEMO

\\d+ matches one or more digits. + repeats the previous token or more times. (?=\\D*$) called positive lookahead assertion which asserts that the match would be followed by any number of non-digit characters further followed by end of the line.