Function utf8Length

lib/binarypack.js:512–519

(str)

}

function utf8Length(str){
  if (str.length > 600) {
    // Blob method faster for large strings
    return (new Blob([str])).size;
  } else {
    return str.replace(/[^\u0000-\u007F]/g, _utf8Replace).length;
  }
}