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History

Rich Trott 201115812e tools: update ESLint to 3.4.0 PR-URL: https://github.com/nodejs/node/pull/8296 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Roman Reiss <me@silverwind.io>		2016-08-30 10:40:45 -07:00
..
index.js	tools: update ESLint to 3.4.0	2016-08-30 10:40:45 -07:00
license	tools: update ESLint to version 2.1.0	2016-02-18 10:13:13 -08:00
package.json	tools: update ESLint to 3.4.0	2016-08-30 10:40:45 -07:00
readme.md	tools: update ESLint to 3.4.0	2016-08-30 10:40:45 -07:00

string-width

Get the visual width of a string - the number of columns required to display it

Some Unicode characters are fullwidth and use double the normal width. ANSI escape codes are stripped and doesn't affect the width.

Useful to be able to measure the actual width of command-line output.

Install

$ npm install --save string-width

const stringWidth = require('string-width');

stringWidth('古');
//=> 2

stringWidth('\u001b[1m古\u001b[22m');
//=> 2

stringWidth('a');
//=> 1