Regular Expressions 101

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

-?optionally matches the literal - (45₁₀ / 55₈ / 2D₁₆)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

-?optionally matches the literal - (45₁₀ / 55₈ / 2D₁₆)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

-?optionally matches the literal - (45₁₀ / 55₈ / 2D₁₆)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

-?optionally matches the literal - (45₁₀ / 55₈ / 2D₁₆)

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

-?optionally matches the literal - (45₁₀ / 55₈ / 2D₁₆)

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

-?optionally matches the literal - (45₁₀ / 55₈ / 2D₁₆)

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

-?optionally matches the literal - (45₁₀ / 55₈ / 2D₁₆)

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

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

1-?1-?1-?1-?2-?2-?2-?2

New

1111-2222 and 11112222