Question

Advanced Field Creation and Management (4%)

Regex, What do /d & /w represent?"

Answer 1

In regex, \d represents any digit [0-9], and \w stands for any word character which is alphanumeric or underscore [A-Za-z0-9_].

Step-by-step explanation:

Within regex (regular expressions), the symbol \d represents any digit, which is equivalent to the set [0-9]. It's used to find a single digit character in a string. On the other hand, the symbol \w stands for 'word character', which usually means alphanumeric (letters and digits) and underscore (_). It includes the entire set [A-Za-z0-9_].

For example, in a regex pattern, using \d\d would match any two digits in a row, such as '42', whereas \w\w would match characters like 'a4', 'b_', or 'C9'.