Regular Expressions 101

Pro

applicationthe literal text application (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

jsonthe literal text json (case sensitive)

Group 1(;\s?charset=[\w\-]+)?

?repeats the group contents below at most once:

;the literal ; (59₁₀ / 73₈ / 3B₁₆)

\s?optionally matches any whitespace character

charset=the literal text charset= (case sensitive)

Character Class[\w\-]+

+matches at least one character from the set below:

\wany word character

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

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

application\/json(;\s?charset=[\w\-]+)?

New

application/json
application/json; charset=utf-8
application/json; charset=UTF-8

application/json
application/json; charset=utf-8
application/json; charset=UTF-8