Regular Expressions 101

^start of line

Non-Capturing Group(?:0?1|601)

1st Alternative0?1

0?optionally matches the literal 0 (48₁₀ / 60₈ / 30₁₆)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

2nd Alternative601

601the literal text 601

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

^(?:0?1|601)

New

123456789
0123456789
60123456789
+60123...

+601