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The table npm package is a utility for generating text-based tables for Node.js applications. It provides a simple yet flexible way to create and manipulate tables in the console or other text-based outputs. It supports custom borders, padding, alignment, and more, making it a versatile tool for displaying tabular data in a structured format.
Basic table creation
This feature allows you to create a simple table by providing an array of arrays. Each sub-array represents a row in the table. The first sub-array can be used for headers.
"use strict";\nconst {table} = require('table');\nlet data = [\n ['Name', 'Age'],\n ['Alice', 24],\n ['Bob', 19]\n];\nconsole.log(table(data));
Custom border styles
This feature allows customization of the table's border by using predefined border styles or creating custom ones. It enhances the visual appearance of the table.
"use strict";\nconst {table, getBorderCharacters} = require('table');\nlet config = {\n border: getBorderCharacters('ramac')\n};\nlet data = [\n ['Name', 'Age'],\n ['Alice', 24],\n ['Bob', 19]\n];\nconsole.log(table(data, config));
Column width and alignment
This feature allows you to specify the width and alignment of columns, providing control over the layout and presentation of data within the table.
"use strict";\nconst {table} = require('table');\nlet config = {\n columns: {\n 0: {\n width: 10,\n alignment: 'left'\n },\n 1: {\n width: 5,\n alignment: 'right'\n }\n }\n};\nlet data = [\n ['Name', 'Age'],\n ['Alice', 24],\n ['Bob', 19]\n];\nconsole.log(table(data, config));
cli-table is a similar package that provides functionalities for rendering unicode-aided tables on the command line. Compared to table, cli-table offers a different API and customization options but serves a similar purpose of displaying tabular data in CLI applications.
ascii-table is another package for creating ASCII tables in Node.js. It is simpler and less feature-rich compared to table, focusing on basic table creation without the extensive customization options that table provides.
Produces a string that represents array data in a text table.
Table data is described using an array (rows) of array (cells).
import table from 'table';
let data,
output;
data = [
['0A', '0B', '0C'],
['1A', '1B', '1C'],
['2A', '2B', '2C']
];
/**
* @typedef {string} table~cell
*/
/**
* @typedef {table~cell[]} table~row
*/
/**
* @typedef {Object} table~columns
* @property {string} alignment Cell content alignment (enum: left, center, right) (default: left).
* @property {number} width Column width (default: auto).
* @property {number} paddingLeft Cell content padding width left (default: 1).
* @property {number} paddingRight Cell content padding width right (default: 1).
*/
/**
* @typedef {Object} table~border
* @property {string} topBody
* @property {string} topJoin
* @property {string} topLeft
* @property {string} topRight
* @property {string} bottomBody
* @property {string} bottomJoin
* @property {string} bottomLeft
* @property {string} bottomRight
* @property {string} bodyLeft
* @property {string} bodyRight
* @property {string} bodyJoin
* @property {string} joinBody
* @property {string} joinLeft
* @property {string} joinRight
* @property {string} joinJoin
*/
/**
* @typedef {Object} table~config
* @property {table~border} border
* @property {table~columns[]} columns Column specific configuration.
*/
/**
* Generates a text table.
*
* @param {table~row[]} rows
* @param {table~config} userConfig
* @return {String}
*/
output = table(data);
console.log(output);
╔════╤════╤════╗
║ 0A │ 0B │ 0C ║
╟────┼────┼────╢
║ 1A │ 1B │ 1C ║
╟────┼────┼────╢
║ 2A │ 2B │ 2C ║
╚════╧════╧════╝
config.columns[{number}].alignment
property controls content horizontal alignment within a cell.
Valid values are: "left", "right" and "center".
let config,
data,
output;
data = [
['0A', '0B', '0C'],
['1A', '1B', '1C'],
['2A', '2B', '2C']
];
config = {
columns: {
0: {
alignment: 'left',
minWidth: 10
},
1: {
alignment: 'center',
minWidth: 10
},
2: {
alignment: 'right',
minWidth: 10
}
}
};
output = table(data, config);
console.log(output);
╔════════════╤════════════╤════════════╗
║ 0A │ 0B │ 0C ║
╟────────────┼────────────┼────────────╢
║ 1A │ 1B │ 1C ║
╟────────────┼────────────┼────────────╢
║ 2A │ 2B │ 2C ║
╚════════════╧════════════╧════════════╝
config.columns[{number}].width
property restrictions column width to a fixed width.
let data,
output,
options;
data = [
['0A', '0B', '0C'],
['1A', '1B', '1C'],
['2A', '2B', '2C']
];
options = {
columns: {
1: {
width: 10
}
}
};
output = table(data, options);
console.log(output);
╔════╤════════════╤════╗
║ 0A │ 0B │ 0C ║
╟────┼────────────┼────╢
║ 1A │ 1B │ 1C ║
╟────┼────────────┼────╢
║ 2A │ 2B │ 2C ║
╚════╧════════════╧════╝
config.border
property describes characters used to draw the table border.
let config,
data,
output;
data = [
['0A', '0B', '0C'],
['1A', '1B', '1C'],
['2A', '2B', '2C']
];
config = {
border: {
topBody: `─`,
topJoin: `┬`,
topLeft: `┌`,
topRight: `┐`,
bottomBody: `─`,
bottomJoin: `┴`,
bottomLeft: `└`,
bottomRight: `┘`,
bodyLeft: `│`,
bodyRight: `│`,
bodyJoin: `│`,
joinBody: `─`,
joinLeft: `├`,
joinRight: `┤`,
joinJoin: `┼`
}
};
output = table(data, config);
console.log(output);
┌────┬────┬────┐
│ 0A │ 0B │ 0C │
├────┼────┼────┤
│ 1A │ 1B │ 1C │
├────┼────┼────┤
│ 2A │ 2B │ 2C │
└────┴────┴────┘
config.columns[{number}].paddingLeft
and config.columns[{number}].paddingRight
properties control content padding within a cell. Property value represents a number of whitespaces used to pad the content.
let config,
data,
output;
data = [
['0A', 'AABBCC', '0C'],
['1A', '1B', '1C'],
['2A', '2B', '2C']
];
config = {
columns: {
0: {
paddingLeft: 3
},
1: {
width: 2,
paddingRight: 3
}
}
};
output = table(data, config);
console.log(output);
╔══════╤══════╤════╗
║ 0A │ AA │ 0C ║
║ │ BB │ ║
║ │ CC │ ║
╟──────┼──────┼────╢
║ 1A │ 1B │ 1C ║
╟──────┼──────┼────╢
║ 2A │ 2B │ 2C ║
╚══════╧══════╧════╝
You can load one of the predefined border templates using getBorderCharacters
function.
import table, {
getBorderCharacters
} from 'table';
let config,
data;
data = [
['0A', '0B', '0C'],
['1A', '1B', '1C'],
['2A', '2B', '2C']
];
config = {
border: getBorderCharacters(`name of the template`)
};
table(data, config);
# honeywell
╔════╤════╤════╗
║ 0A │ 0B │ 0C ║
╟────┼────┼────╢
║ 1A │ 1B │ 1C ║
╟────┼────┼────╢
║ 2A │ 2B │ 2C ║
╚════╧════╧════╝
# norc
┌────┬────┬────┐
│ 0A │ 0B │ 0C │
├────┼────┼────┤
│ 1A │ 1B │ 1C │
├────┼────┼────┤
│ 2A │ 2B │ 2C │
└────┴────┴────┘
# ramac (ASCII; for use in terminals that do not support Unicode characters)
+----+----+----+
| 0A | 0B | 0C |
|----|----|----|
| 1A | 1B | 1C |
|----|----|----|
| 2A | 2B | 2C |
+----+----+----+
Raise an issue if you'd like to contribute a new border template.
FAQs
Formats data into a string table.
The npm package table receives a total of 11,792,535 weekly downloads. As such, table popularity was classified as popular.
We found that table demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 2 open source maintainers collaborating on the project.
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