parse-csv

CSV parser for node.js.

TOC

• Install
• Usage
• API
  • Available renderers
• Options
  • Parser options
  • Renderer options
• Related projects
• Contributing
• Building docs
• Running tests
• Author
• License

Install

Install with npm:

$ npm install parse-csv --save

Based on mr-data-converter by @shancarter. Copyright (c) 2011 Shan Carter.

Usage

var csv = require('parse-csv');

var str = [
  'id,fruit,vegetable',
  '1,apple,carrot',
  '2,orange,corn',
  '3,banana,potato'
].join('\n');

var obj = csv.toJSON(str, {headers: {included: true}});
console.log(obj);

API

csv

Parse a string of CSV to a datagrid and render it using the specified renderer. The .json renderer is used by default.

Params

• method {String}: The name of the renderer method to use, or a string of CSV. If CSV, the .json method will be used.
• str {String|Object}: String of CSV or options.
• options {Object}
• returns {String}

Example

var str = `
id,fruit,vegetable
1,apple,carrot
2,orange,corn
3,banana,potato`;

var res = csv(str, {headers: {included: true}});
console.log(res);
// results in:
// [{"id":"1","fruit":"apple","vegetable":"carrot"},
// {"id":"2","fruit":"orange","vegetable":"corn"},
// {"id":"3","fruit":"banana","vegetable":"potato"}]

.toJSON

Parse a string of CSV to a datagrid, format it using one of the .json* renderer methods, then parse it back to JSON.

Params

• method {String}: The name of the renderer method to use, or a string of CSV. If CSV, the .json method will be used.
• str {String|Object}: String of CSV or options.
• options {Object}
• returns {String}

Example

var str = `
id,fruit,vegetable
1,apple,carrot
2,orange,corn
3,banana,potato`;

var res = csv.toJSON('jsonDict', str, {headers: {included: true}});
console.log(res);
// results in:
// { '1': { fruit: 'apple', vegetable: 'carrot' },
//   '2': { fruit: 'orange', vegetable: 'corn' },
//   '3': { fruit: 'banana', vegetable: 'potato' } }

Parser

Create a new Parser with the given options.

Params

• options {Options}

Example

var csv = require('parse-csv');
var parser = new csv.Parser();

.parse

Parse CSV or tab-delimited string into a data-grid formatted JavaScript object.

Params

• str {String}
• options {Object}
• returns {Object}

Example

var parser = new Parser();

var str = `
id,fruit,vegetable
1,apple,carrot
2,orange,corn
3,banana,potato`;

var datagrid = parser.parse(str);

// results in:
// { data:
//    [ [ '1', 'apple', 'carrot' ],
//      [ '2', 'orange', 'corn' ],
//      [ '3', 'banana', 'potato' ] ],
//   header:
//    { names: [ 'id', 'fruit', 'vegetable' ],
//      types: [ '-1': 'string' ] } }

Renderer

Create a new Renderer with the given options.

Params

• options {Object}

Example

var csv = require('parse-csv');
var renderer = new csv.Renderer();

Available renderers

The following render methods are available when the renderer is used directly. Or specify the renderer on options.renderer when using the main export function.

• .as: Actionscript
• .asp: ASP/VBScript
• .html: HTML
• .json: JSON - Properties
• .jsonArrayCols: JSON - Column Arrays
• .jsonArrayRows: JSON - Row Arrays
• .jsonDict: JSON - Dictionary
• .mysql: MySQL
• .php: PHP
• .python: Python - Dict
• .ruby: Ruby
• .xmlProperties: XML - Properties
• .xml: XML - Nodes
• .xmlIllustrator: XML - Illustrator

Example

To render CSV as HTML:

var csv = require('parse-csv');
var renderer = new csv.Renderer();

var str = `
id,fruit,vegetable
1,apple,carrot
2,orange,corn
3,banana,potato`;

var html = renderer.html(str, {headers: {included: true}});
console.log(html);

Results in:

<table>
  <thead>
    <tr>
      <th class="id-cell">id</th>
      <th class="fruit-cell">fruit</th>
      <th class="vegetable-cell">vegetable</th>
    </tr>
  </thead>
  <tbody>
    <tr class="firstRow">
      <td class="id-cell">1</td>
      <td class="fruit-cell">apple</td>
      <td class="vegetable-cell">carrot</td>
    </tr>
    <tr>
      <td class="id-cell">2</td>
      <td class="fruit-cell">orange</td>
      <td class="vegetable-cell">corn</td>
    </tr>
    <tr class="lastRow">
      <td class="id-cell">3</td>
      <td class="fruit-cell">banana</td>
      <td class="vegetable-cell">potato</td>
    </tr>
  </tbody>
</table>

Options

Parser options

Available parser options and the actual defaults used.

{
  headers: {
    included: false,
    downcase: true,
    upcase: true
  },
  delimiter: 'tab',
  decimalSign: 'comma'
}

Renderer options

Available renderer options and the actual defaults used.

{
  headers: {
    included: true,
    downcase: true,
    upcase: true
  },

  delimiter: 'tab',
  decimalSign: 'comma',
  outputDataType: 'json',
  columnDelimiter: "\t",
  rowDelimiter: '\n',

  inputHeader: {},
  outputHeader: {},
  dataSelect: {},

  outputText: '',

  newline: '\n',
  indent: '  ',

  commentLine: '//',
  commentLineEnd: '',
  tableName: 'converter',

  useUnderscores: true,
  includeWhiteSpace: true,
  useTabsForIndent: false
}

Related projects

You might also be interested in these projects:

• gulp-convert: Gulp plugin to convert to or from JSON, YAML, XML, PLIST or CSV. | homepage
• parser-csv: CSV parser, compatible with [parser-cache]. | homepage

Contributing

Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.

Building docs

Generate readme and API documentation with verb:

$ npm install verb && npm run docs

Or, if verb is installed globally:

$ verb

Running tests

Install dev dependencies:

$ npm install -d && npm test

Author

Jon Schlinkert

• github/jonschlinkert
• twitter/jonschlinkert

License

Copyright © 2016, Jon Schlinkert. Released under the MIT license.

This file was generated by verb, v0.9.0, on May 09, 2016.