What does \d+ mean in regular expression terms?

Question

I\'m new to regular expressions and came accros the following \\d+ . I do not exactly know what this means, please point me in the right direction.

Answer 1

\d is called a character class and will match digits. It is equal to [0-9].

+ matches 1 or more occurrences of the character before.

So \d+ means match 1 or more digits.