Regular Expressions 101

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/
(\d+(?:[,.]\d+)?)(?=[^>]+?<)
/
g
1st Capturing Group
(\d+(?:[,.]\d+)?)
\d
matches a digit (equivalent to [0-9])
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
Non-capturing group
(?:[,.]\d+)?
? matches the previous token between zero and one times, as many times as possible, giving back as needed (greedy)
Match a single character present in the list below
[,.]
,.
matches a single character in the list ,. (case sensitive)
\d
matches a digit (equivalent to [0-9])
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
Positive Lookahead
(?=[^>]+?<)
Assert that the Regex below matches
Match a single character not present in the list below
[^>]
+? matches the previous token between one and unlimited times, as few times as possible, expanding as needed (lazy)
> matches the character > with index 6210 (3E16 or 768) literally (case sensitive)
< matches the character < with index 6010 (3C16 or 748) 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.

Regular Expression
No Match

/
/
g

Test String

Substitution

Processing...