Regular Expressions 101

Pro

Group 1("position": \[\d+(?:\.?\d*), \d+(?:\.?\d*))

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

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

\d+a Unicode decimal digit, repeated at least once

Non-Capturing Group(?:\.?\d*)

\.?optionally matches the literal . (46₁₀ / 56₈ / 2E₁₆)

\d*a Unicode decimal digit, repeated any number of times

, the literal text ,

\d+a Unicode decimal digit, repeated at least once

Non-Capturing Group(?:\.?\d*)

\.?optionally matches the literal . (46₁₀ / 56₈ / 2E₁₆)

\d*a Unicode decimal digit, repeated any number of times

Group 2(])

]the literal ] (93₁₀ / 135₈ / 5D₁₆)

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

("position": \[\d+(?:\.?\d*), \d+(?:\.?\d*))(])

New

"position": [0, 0]
"position": [0.1, 0]
"position": [0, 0.1]
"position": [0.1, 0.1]

\1, 0\2

"position": [0, 0]
"position": [0.1, 0]
"position": [0, 0.1]
"position": [0.1, 0.1]