Regular Expressions 101

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

Positive Lookahead(?=[(x])

Character Class[(x]

(the literal ( (40₁₀ / 50₈ / 28₁₆)

xthe literal x (120₁₀ / 170₈ / 78₁₆) (case sensitive)

Global pattern flags

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

_(?=[(x])

New

test_(match)
test_xMatchToo
test_a
test_b