Regular Expressions 101

Pro

^start of line

Character Class[A-Z]

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

Character Class[\w\s]+

+matches at least one character from the set below:

\wany word character

\sany whitespace character

Character Class[?.!]

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

$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.

25 tokens

^[A-Z][\w\s]+[?.!]$

New

This sentence is correct.
this sentence does not start with capital.
This sentence is not correct

This sentence is correct.
this sentence does not start with capital.
This sentence is not correct