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@algonomia/convert-array-to-csv

v1.0.0

Published

Convert an array to a csv formatted string

Downloads

67

Readme

convert-array-to-csv

npm Travis branch Codecov branch

Convert an array to a csv formatted string

Table of Contents

Why?

I needed a simple way to download the data from a table component in a csv format.

Installation

$ npm i convert-array-to-csv -S

or

$ yarn add convert-array-to-csv

Functions

Take a look into the usage section for a detailed example.

convertArrayToCSV

Note: you can also use the default export.

This function converts an array of objects, or an array of arrays into an csv formatted string.

Syntax

Returns a new string.

const csv = convertArrayToCSV(data, options);
Parameters
  • data: an array of arrays or an array of objects
  • options: a object
    • holds two keys: header and separator
    • header: and array with the name of the columns, default: undefined
    • separator: the character which is the separator in your csv formatted string, default: ','

Usage

An example how to use it.

const { convertArrayToCSV } = require('convert-array-to-csv');
const converter = require('convert-array-to-csv');

const header = ['number', 'first', 'last', 'handle'];
const dataArrays = [
  [1, 'Mark', 'Otto', '@mdo'],
  [2, 'Jacob', 'Thornton', '@fat'],
  [3, 'Larry', 'the Bird', '@twitter'],
];
const dataObjects = [
  {
    number: 1,
    first: 'Mark',
    last: 'Otto',
    handle: '@mdo',
  },
  {
    number: 2,
    first: 'Jacob',
    last: 'Thornton',
    handle: '@fat',
  },
  {
    number: 3,
    first: 'Larry',
    last: 'the Bird',
    handle: '@twitter',
  },
];

/*
  const csvFromArrayOfObjects  = 'number,first,last,handle\n1,Mark,Otto,@mdo\n2,Jacob,Thornton,@fat\n3,Larry,the Bird,@twitter\n';
*/
const csvFromArrayOfObjects = convertArrayToCSV(dataObjects);

/*
  const csvFromArrayOfArrays  = 'number;first;last;handle\n1;Mark;Otto;@mdo\n2;Jacob;Thornton;@fat\n3;Larry;the Bird;@twitter\n';
*/
const csvFromArrayOfArrays = convertArrayToCSV(dataArrays, {
  header,
  separator: ';'
});

License

MIT © Lukas Aichbauer