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array matches(value, regex)

Returns the result of matching a value against a regular expression.

An array value will return the result of the first matching element, a dictionary value will return the result of the first matching entry key, otherwise the text of value itself is matched.

This function will only find a single, the first match, use the findAll function to find all matching parts.

Both the regular expression syntax and text literals use the backslash \ and left curly bracket { characters for special purpose. Use \\ and \{ to avoid the text literal interpretation.

Flags embedded as a prefix in regex:

(?d)Unix lines mode
(?i)Case-insensitive matching (US-ASCII only)
(?iu)Case-insensitive matching (Unicode, preferred)
(?m)Multiline mode
(?s)Dotall mode, use it when matching a multiple line value
(?u)Unicode-aware case folding
(?x)Ignore whitespace and comments in pattern


  1. value — value to be matched.
  2. regexregular expression to match against.


  • an array containing the entire matched result and any capture groups, or null if there were no match.
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