preact-arco-design/es/_util/getStringLength.js

Arco Design React UI Library.

// 计算字符串长度，中文字符占两个长度
export default function (str) {
  var len = 0;

  for (var i = 0; i < str.length; i++) {
    if (str.charCodeAt(i) > 127 || str.charCodeAt(i) === 94) {
      len += 2;
    } else {
      len++;
    }
  }

  return len;
}