@sms-frontend/components/es/_util/getStringLength.js

SMS 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;
}