Q: How do I use the CSV Field regex in JavaScript?

Use the pattern /(?:"([^"]*(?:""[^"]*)*)"|([^,\r\n]*))/g with the String.match() or String.matchAll() method. For example: const matches = text.match(/(?:"([^"]*(?:""[^"]*)*)"|([^,\r\n]*))/g);

Question 1

What does the CSV Field regex pattern do?

Accepted Answer

Matches CSV fields: either a double-quoted string (with escaped double quotes as "") or an unquoted value terminated by comma, CR, or LF.

Question 2

How do I use the CSV Field regex in JavaScript?

Accepted Answer

Use the pattern /(?:"([^"]*(?:""[^"]*)*)"|([^,
]*))/g with the String.match() or String.matchAll() method. For example: const matches = text.match(/(?:"([^"]*(?:""[^"]*)*)"|([^,
]*))/g);

Question 3

What regex flags does this pattern use?

Accepted Answer

This pattern uses the global flag (g). The global flag finds all matches in the input, not just the first.

Question 4

Which programming languages support this regex?

Accepted Answer

Fully supported in JS, PYTHON, JAVA, PHP, GO

Question 5

What strings does this regex match?

Accepted Answer

This pattern matches strings like: "Hello, World", simple_value, "She said ""hi""".

Language	Support
JS	Full support
PYTHON	Full support
JAVA	Full support
PHP	Full support
GO	Full support

CSV Field

Pattern

Try It

Explanation

Test Strings

Matching

Non-matching

Language Compatibility

Code Snippets

Related Patterns

JSON Key-Value Pair