Option quoted_match

Quote all fields matching a regular expression. Value may equal a string, a RegExp, and an array with any of those.

• Type: [String|RegExp] or String|RegExp
• Optional
• Default: null
• Since: 5.0.0
• Related: quote, quoted_empty, quoted_string, quoted — see Available Options

Note, several options are available to control when to quote fields under certain conditions. Make sure to review the alternatives.

Example with a string

In the quoted_match_string example, fields containing the string "." are quoted.

import { stringify } from 'csv-stringify';
import assert from 'node:assert';

stringify([
  ['a value', '.', 'value.with.dot'],
], {
  quoted_match: '.'
}, function(err, records){
  assert.equal(records, 'a value,".","value.with.dot"\n');
});

Example with a regular expression

In the quoted_match_regexp example, fields matching the regular expression /\./ are quoted.

import { stringify } from 'csv-stringify';
import assert from 'node:assert';

stringify([
  ['a value', '.', 'value.with.dot'],
], {
  quoted_match: /\./
}, function(err, records){
  assert.equal(records, 'a value,".","value.with.dot"\n');
});