Regular Expressions 101

^start of line

"MyId":the literal text "MyId": (case sensitive)

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

Character Class[0-9]+

+matches at least one character from the set below:

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.

25 tokens

Regular Expression

^"MyId":[1-9][0-9]+$

New

"OtherId":47
"OtherId":7
"MyId":47
"MyId":7

"OtherId":47
"OtherId":7
"MyId":47
"MyId":7