Regular Expressions 101

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/
"?([^"{]+)?"?\s*:\s*"([^"]+)?",?
/
g
"
matches the character " with index 3410 (2216 or 428) literally (case sensitive)
1st Capturing Group
([^"{]+)?
? matches the previous token between zero and one times, as many times as possible, giving back as needed (greedy)
Match a single character not present in the list below
[^"{]
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
"{
matches a single character in the list "{ (case sensitive)
"
matches the character " with index 3410 (2216 or 428) literally (case sensitive)
\s
matches any whitespace character (equivalent to [\r\n\t\f\v ])
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
: matches the character : with index 5810 (3A16 or 728) literally (case sensitive)
\s
matches any whitespace character (equivalent to [\r\n\t\f\v ])
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
" matches the character " with index 3410 (2216 or 428) literally (case sensitive)
2nd Capturing Group
([^"]+)?
? matches the previous token between zero and one times, as many times as possible, giving back as needed (greedy)
Match a single character not present in the list below
[^"]
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
" matches the character " with index 3410 (2216 or 428) literally (case sensitive)
" matches the character " with index 3410 (2216 or 428) literally (case sensitive)
,
matches the character , with index 4410 (2C16 or 548) literally (case sensitive)
Global pattern flags
g modifier: global. All matches (don't return after first match)
Your regular expression does not match the subject string.Try launching the debugger to find out why.

Regular Expression
No Match

/
/
g

Test String