unicode character visual width
npm install visualwidthVisualWidth
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This is a unicode character's visual width calculator for javascript.
This module supports node.js, too.
SYNOPSIS
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var vw = require('./visualwidth');
console.log(vw('あいうabc')); # => 9
console.log(vw.width('あいうabc')); # => 9
console.log(vw.truncate('ほう。hasegawaさん', 7, '...')); => "ほう..."