68 lines
3.5 KiB
Markdown
68 lines
3.5 KiB
Markdown
Parse CSV with JavaScript
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========================================
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Papa Parse is the [fastest](http://jsperf.com/javascript-csv-parsers/4) in-browser CSV (or delimited text) parser for JavaScript. It is reliable and correct according to [RFC 4180](https://tools.ietf.org/html/rfc4180), and it comes with these features:
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- Easy to use
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- Parse CSV files directly (local or over the network)
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- Fast mode ([is really fast](http://jsperf.com/javascript-csv-parsers/3))
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- Stream large files (even via HTTP)
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- Reverse parsing (converts JSON to CSV)
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- Auto-detect delimiter
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- Worker threads to keep your web page reactive
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- Header row support
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- Pause, resume, abort
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- Can convert numbers and booleans to their types
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- Optional jQuery integration to get files from `<input type="file">` elements
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- One of the only parsers that correctly handles line-breaks and quotations
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Papa Parse has **no dependencies** - not even jQuery.
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Install
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-------
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papaparse is available on [npm](https://www.npmjs.com/package/papaparse). It
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can be installed with the following command:
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npm install papaparse
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If you don't want to use npm, [papaparse.min.js](https://unpkg.com/papaparse@latest/papaparse.min.js) can be downloaded to your project source.
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Homepage & Demo
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----------------
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- [Homepage](http://papaparse.com)
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- [Demo](http://papaparse.com/demo)
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To learn how to use Papa Parse:
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- [Documentation](http://papaparse.com/docs)
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The website is hosted on [Github Pages](https://pages.github.com/). Its content is also included in the docs folder of this repository. If you want to contribute on it just clone the master of this repository and open a pull request.
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Papa Parse for Node
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--------------------
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Papa Parse can parse a [Readable Stream](https://nodejs.org/api/stream.html#stream_readable_streams) instead of a [File](https://www.w3.org/TR/FileAPI/) when used in Node.js environments (in addition to plain strings). In this mode, `encoding` must, if specified, be a Node-supported character encoding. The `Papa.LocalChunkSize`, `Papa.RemoteChunkSize` , `download`, `withCredentials` and `worker` config options are unavailable.
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Papa Parse can also parse in a node streaming style which makes `.pipe` available. Simply pipe the [Readable Stream](https://nodejs.org/api/stream.html#stream_readable_streams) to the stream returned from `Papa.parse(Papa.NODE_STREAM_INPUT, options)`. The `Papa.LocalChunkSize`, `Papa.RemoteChunkSize` , `download`, `withCredentials`, `worker`, `step`, and `complete` config options are unavailable. To register a callback with the stream to process data, use the `data` event like so: `stream.on('data', callback)` and to signal the end of stream, use the 'end' event like so: `stream.on('end', callback)`.
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Get Started
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-----------
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For usage instructions, see the [homepage](http://papaparse.com) and, for more detail, the [documentation](http://papaparse.com/docs).
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Tests
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-----
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Papa Parse is under test. Download this repository, run `npm install`, then `npm test` to run the tests.
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Contributing
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------------
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To discuss a new feature or ask a question, open an issue. To fix a bug, submit a pull request to be credited with the [contributors](https://github.com/mholt/PapaParse/graphs/contributors)! Remember, a pull request, *with test*, is best. You may also discuss on Twitter with [#PapaParse](https://twitter.com/search?q=%23PapaParse&src=typd&f=realtime) or directly to me, [@mholt6](https://twitter.com/mholt6).
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If you contribute a patch, ensure the tests suite is running correctly. We run continuous integration on each pull request and will not accept a patch that breaks the tests.
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