tablemark

tablemark ·

Generate markdown tables from JSON data.

Parses arrays of objects into markdown tables, complete with configuration for renaming columns and left, center, or right-aligning them.

installation

yarn add tablemark

usage

const tablemark = require('tablemark')

tablemark([
  { name: 'Bob', age: 21, isCool: false },
  { name: 'Sarah', age: 22, isCool: true },
  { name: 'Lee', age: 23, isCool: true }
])

// | Name  | Age   | Is cool |
// | ----- | ----- | ------- |
// | Bob   | 21    | false   |
// | Sarah | 22    | true    |
// | Lee   | 23    | true    |

... displays as:

Name	Age	Is cool
Bob	21	false
Sarah	22	true
Lee	23	true

api

tablemark(input[, options = {}])

Arguments

• {Array<Object>} input: the data to table-ify
• {Object} [options = {}]

key	type	default	description
columns	<Array>	-	Array of column descriptors.
caseHeaders	<Boolean>	true	Sentence case headers derived from keys.
stringify	<Function>	-	Provide a custom "toString" function.
wrap.width	<Number>	Infinity	Wrap texts at this length.
wrap.gutters	<Boolean>	false	Add sides (| <content> |) to wrapped rows.

The columns array can either contain objects, in which case their name and align properties will be used to alter the display of the column in the table, or any other type which will be coerced to a string if necessary and used as a replacement for the column name.

columns

tablemark([
  { name: 'Bob', age: 21, isCool: false },
  { name: 'Sarah', age: 22, isCool: true },
  { name: 'Lee', age: 23, isCool: true }
], {
  columns: [
    'first name',
    { name: 'how old', align: 'center' },
    'are they cool'
  ]
})

// | first name | how old | are they cool |
// | ---------- | :-----: | ------------- |
// | Bob        |   21    | false         |
// | Sarah      |   22    | true          |
// | Lee        |   23    | true          |

... displays as:

first name	how old	are they cool
Bob	21	false
Sarah	22	true
Lee	23	true

stringify

tablemark([
  { name: 'Bob', pet_owner: true, studying: false },
  { name: 'Sarah', pet_owner: false, studying: true },
  { name: 'Sarah', pet_owner: true, studying: true }
], {
  stringify,
  columns: [
    { align: 'left' },
    { align: 'center' },
    { align: 'center' }
  ]
})

function stringify (v) {
  if (v === true) return '✔'
  if (!v) return ''
  return v
}

// | Name  | Pet owner | Studying |
// | :---- | :-------: | :------: |
// | Bob   |     ✔︎     |          |
// | Sarah |           |    ✔     |
// | Lee   |     ✔     |    ✔     |

wrap

To output valid GitHub Flavored Markdown a cell must not contain newlines. Consider replacing those with <br /> (e.g. using the stringify option).

Set the wrap.width option to wrap any content at that length onto a new adjacent line:

tablemark([
  { star: false, name: 'Benjamin' },
  { star: true, name: 'Jet Li' }
], { wrap: { width: 5 } })

// | Star  | Name  |
// | ----- | ----- |
// | false | Benja |
//           min
// | true  | Jet   |
//           Li

Enable wrap.gutters to add pipes on all lines:

tablemark([
  { star: false, name: 'Benjamin' },
  { star: true, name: 'Jet Li' }
], { wrap: { width: 5, gutters: true } })

// | Star  | Name  |
// | ----- | ----- |
// | false | Benja |
// |       | min   |
// | true  | Jet   |
// |       | Li    |

see also

• tablemark-cli – use this module from the command line

contributing

Search the issues if you come across any trouble, open a new one if it hasn't been posted, or, if you're able, open a pull request. Contributions of any kind are welcome in this project.

The following people have already contributed their time and effort:

• Thomas Jensen (@tjconcept)

Thank you!

license

MIT © Bo Lingen / citycide