javascript和暦変換

和暦変換

/**
 * 和暦変換
 * @param int year
 * @param bool setting
 * @returns int | string
 */
function convert_wareki(year, setting){
    var result;
    if(setting === false){
        return year;
    } else if (year > 1988) {
        result = year - 1988;
        result = '平成 ' + result;
        return result;
    } else if (year > 1925) {
        result = year - 1925;
        result = '昭和 ' + result;
        return result;
    } else if (year > 1911) {
        result = y - 1911;
        result = '大正 ' + result;
        return result;
    } else if (year > 1867) {
        result = year - 1867;
        result = '明治 ' + result;
        return result;
    }
}