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schangxiang@126.com
2025-09-19 18966e02fb573c7e2bb0c6426ed792b38b910940
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# East Asian Width
 
Get [East Asian Width](http://www.unicode.org/reports/tr11/) from a character.
 
'F'(Fullwidth), 'H'(Halfwidth), 'W'(Wide), 'Na'(Narrow), 'A'(Ambiguous) or 'N'(Natural).
 
Original Code is [東アジアの文字幅 (East Asian Width) の判定 - 中途](http://d.hatena.ne.jp/takenspc/20111126#1322252878).
 
## Install
 
    $ npm install eastasianwidth
 
## Usage
 
    var eaw = require('eastasianwidth');
    console.log(eaw.eastAsianWidth('₩')) // 'F'
    console.log(eaw.eastAsianWidth('。')) // 'H'
    console.log(eaw.eastAsianWidth('뀀')) // 'W'
    console.log(eaw.eastAsianWidth('a')) // 'Na'
    console.log(eaw.eastAsianWidth('①')) // 'A'
    console.log(eaw.eastAsianWidth('ف')) // 'N'
 
    console.log(eaw.characterLength('₩')) // 2
    console.log(eaw.characterLength('。')) // 1
    console.log(eaw.characterLength('뀀')) // 2
    console.log(eaw.characterLength('a')) // 1
    console.log(eaw.characterLength('①')) // 2
    console.log(eaw.characterLength('ف')) // 1
 
    console.log(eaw.length('あいうえお')) // 10
    console.log(eaw.length('abcdefg')) // 7
    console.log(eaw.length('¢₩。ᅵㄅ뀀¢⟭a⊙①بف')) // 19