常見小功能（css js都有）

CSS部分

• 解決數字和字母不換行
  word-break:break-all;word-wrap:break-word
• 超出寬度顯示三個點
  overflow: hidden;white-space: nowrap;text-overflow: ellipsis;
  最多顯示兩行，超出顯示三個點
  text-overflow: -o-ellipsis-lastline;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;

JS部分

• js判斷input長度（針對的type=number）
  οninput=“if(value.length>11)value=value.slice(0,11)”

• 根據生日計算週歲年齡

function getAge(strBirthday){
    var returnAge;
    var strBirthdayArr=strBirthday.split("-");
    var birthYear = strBirthdayArr[0];
    var birthMonth = strBirthdayArr[1];
    var birthDay = strBirthdayArr[2];
    d = new Date();
    var nowYear = d.getFullYear();
    var nowMonth = d.getMonth() + 1;
    var nowDay = d.getDate();
    if(nowYear == birthYear){
        returnAge = 0;//同年 則爲0歲
    }
    else{
        var ageDiff = nowYear - birthYear ; //年之差
        if(ageDiff > 0){
            if(nowMonth == birthMonth) {
                var dayDiff = nowDay - birthDay;//日之差
                if(dayDiff < 0)
                {
                    returnAge = ageDiff - 1;
                }
                else
                {
                    returnAge = ageDiff ;
                }
            }
            else
            {
                var monthDiff = nowMonth - birthMonth;//月之差
                if(monthDiff < 0)
                {
                    returnAge = ageDiff - 1;
                }
                else
                {
                    returnAge = ageDiff ;
                }
            }
        }
        else
        {
            returnAge = -1;//返回-1 表示出生日期輸入錯誤 晚於今天
        }
    }

    return returnAge;//返回週歲年齡

}