Regex for trailing comma

Note

The lookahead finds commas followed by a closing bracket without consuming it. Replace with nothing to clean up near-JSON.

Matches in the example

• ","
• ","

Token by token

1. , the character “,”
2. (?= followed by (lookahead, not consumed)
3. \s* a whitespace character, zero or more times, as many as possible
4. [\]}] one of: the character “]” or “}”
5. ) end of group

Other patterns

• Email address
• URL
• IPv4 address
• UUID
• Hex color
• Date (YYYY-MM-DD)
• Time (24-hour)
• US phone number
• Phone number (E.164)
• US ZIP code
• Credit card number
• URL slug
• Username
• Strong password
• HTML tag
• Semantic version
• MAC address
• JSON Web Token
• Hashtag
• @mention
• Number
• Leading and trailing whitespace
• Repeated word
• Blank lines
• Markdown link
• Quoted string
• Domain name
• File extension
• Base64
• Trailing comma