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pocotan001/isHalfWidth.js

Created February 17, 2016 09:35
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コードポイントから絞る簡易版。→のがちゃんとしてる https://github.com/komagata/eastasianwidth
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isHalfWidth.js
// Basic Latin (0000–007F) http://unicode.org/charts/PDF/U0000.pdf
// Halfwidth Katakana (FF61–FF9F) http://unicode.org/charts/PDF/UFF00.pdf
function isHalfWidth(string) {
return /[\u0000-\u007f\uff61-\uff9f]/.test(string);
}
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