Regular Expressions 101

Pro

\ban ASCII word boundary

Group 1(0x[\da-fA-F]+|[\d]+|0b[01]+)

1st Alternative0x[\da-fA-F]+

0xthe literal text 0x (case sensitive)

Character Class[\da-fA-F]+

+matches at least one character from the set below:

\da digit

a-fone character from a (97₁₀) to f (102₁₀) (case sensitive)

A-Fone character from A (65₁₀) to F (70₁₀) (case sensitive)

2nd Alternative[\d]+

Character Class[\d]+

+matches at least one character from the set below:

\da digit

3rd Alternative0b[01]+

0bthe literal text 0b (case sensitive)

Character Class[01]+

+matches at least one character from the set below:

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

\ban ASCII word boundary

Global pattern flags

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

Detailed match information will be displayed here automatically.

25 tokens

\b(0x[\da-fA-F]+|[\d]+|0b[01]+)\b

New

1234   (decimal)
0x12CD (hex)
0x12cd (hex lowercase)
12CD   (hex without the 0x prefix)
0b0010101011
0bh24j