Regular Expressions 101

^start of line

ithe literal i (105₁₀ / 151₈ / 69₁₆) (case sensitive)

Character Class[A-za-z0-9]+

+matches at least one character from the set below:

A-zone character from A (65₁₀) to z (122₁₀) (case sensitive)

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

0-9one character from 0 (48₁₀) to 9 (57₁₀)

$end of line

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

^i[A-za-z0-9]+$

New

iGuKiscdvMrrSCaKGdmePT5ASu6gRJBHoB
iPokbyeGPuF46B27dAY3fRZAkKdDh8WbNr
iJhZPxQp7fWQCBvmyTFLAFs9Q8kWWEJHfi
iKs7Kv9gaLCoJVXvnPkqf4peXFqZrCG1G4
iJRXgmaiwQ5r6NnxDcFgT2yBpjtWB1y5vM