Regular Expressions 101

Group 1(\d{1})

\d{1}a Unicode decimal digit, repeated exactly 1 time

Character Class[-]

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group 2(\d{3})

\d{3}a Unicode decimal digit, repeated exactly 3 times

Character Class[-]

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group 3(\d{3})

\d{3}a Unicode decimal digit, repeated exactly 3 times

Character Class[-]

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group 4(\d{4})

\d{4}a Unicode decimal digit, repeated exactly 4 times

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(\d{1})[-](\d{3})[-](\d{3})[-](\d{4})

New

2124567890
212-456-7890
(212)456-7890
(212)-456-7890
212.456.7890
212 456 7890
+12124567890
+12124567890
+1 212.456.7890
+212-456-7890
1-212-456-7890
1-21-345-7890

Regular Expression

Extraction