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csv-stringify
Advanced tools
The csv-stringify npm package is a module that provides the ability to convert arrays or objects into a CSV (Comma-Separated Values) string. It can be used to generate CSV files or strings from JavaScript data structures, supporting both the Node.js stream API and a simple callback-based API.
Stringifying an array of records
This feature allows you to convert an array of arrays (representing records) into a CSV string. Each sub-array is a row in the CSV output.
const stringify = require('csv-stringify');
const records = [['1', '2', '3'], ['a', 'b', 'c']];
stringify(records, (err, output) => {
if (err) throw err;
console.log(output);
});
Stringifying from a stream
This feature demonstrates how to use csv-stringify with Node.js streams. Data can be piped into the stringify function, which then outputs a CSV formatted stream.
const stringify = require('csv-stringify');
const { Readable } = require('stream');
const records = new Readable({
objectMode: true,
read() {}
});
records.push(['1', '2', '3']);
records.push(['a', 'b', 'c']);
records.push(null);
records.pipe(stringify()).pipe(process.stdout);
Stringifying objects with column headers
This feature allows you to convert an array of objects into a CSV string, including column headers as the first row in the output.
const stringify = require('csv-stringify');
const records = [{ id: '1', name: 'John Doe' }, { id: '2', name: 'Jane Doe' }];
stringify(records, { header: true }, (err, output) => {
if (err) throw err;
console.log(output);
});
PapaParse is a robust and powerful CSV (character-separated values) parser with a focus on ease of use and performance. It can parse CSV files or strings, convert them to JSON, and provide many advanced features like auto-detection of delimiters. Compared to csv-stringify, PapaParse offers both parsing and stringifying capabilities, whereas csv-stringify is focused only on stringifying.
fast-csv is an npm package that provides parsing and formatting capabilities for CSV data. It is designed to be fast and flexible, allowing for both stream and callback-based APIs. While csv-stringify is specifically for stringifying JavaScript data into CSV format, fast-csv offers both parsing and formatting, making it a more comprehensive solution for working with CSV data.
Part of the [CSV module][csv_home], this project is a stringifier converting
arrays or objects input into a CSV text. It implements the Node.js
[stream.Transform
API][stream_transform]. It also provides a simple
callback-based API for convenience. It is both extremely easy to use and
powerful. It was first released in 2010 and is used against big data sets by a
large community.
Documentation for the "csv-stringify" package is available here.
csv-generate
, csv-parse
and stream-transform
Refer to the project webpage for an exhaustive list of options and some usage examples.
The module is built on the Node.js Stream API. For the sake of simplify, a simple callback API is also provided. To give you a quick look, here's an example of the callback API:
var stringify = require('csv-stringify');
input = [ [ '1', '2', '3', '4' ], [ 'a', 'b', 'c', 'd' ] ];
stringify(input, function(err, output){
output.should.eql('1,2,3,4\na,b,c,d');
});
Tests are executed with mocha. To install it, simple run npm install
followed by npm test
. It will install mocha and its dependencies in your
project "node_modules" directory and run the test suite. The tests run
against the CoffeeScript source files.
To generate the JavaScript files, run npm run coffee
.
The test suite is run online with Travis against the versions 0.10, 0.11 and 0.12 of Node.js.
FAQs
CSV stringifier implementing the Node.js `stream.Transform` API
The npm package csv-stringify receives a total of 2,070,969 weekly downloads. As such, csv-stringify popularity was classified as popular.
We found that csv-stringify demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
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