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think49/getStringByte.js

Created October 19, 2010 15:09
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getStringByte.js : 文字列のバイト数を求める
Raw
getStringByte.js
function getStringByte (str) {
return encodeURIComponent(str).replace(/%[\da-zA-Z]+/g, '.').length;
}
alert(getStringByte('テスト')); // 9
alert(getStringByte('test')); // 4
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