date-week/src/index.js

周日历，实现 上一周 ， 下一周

var currentFirstDate;
function formatDate (date){             
    var year = date.getFullYear();
    var month = (date.getMonth());
    var day = date.getDate();
    var h = date.getHours();
    var m = date.getMinutes();
    var s = date.getSeconds(); 
    return {
        year:year,
        month:month,
        day:day,
        h:h,
        s:s,
        m:m};
}

function addDate( date , n ){
    date.setDate( date.getDate()+n );        
    return date;
}

function setDate( date ){
    var week = date.getDay()-1;
    date = addDate(date,week*-1);
    currentFirstDate = new Date( date );
    var startTime , endTime ;
    var dateList=[] ;
    for(var i = 0;i<7;i++){
        dateList.push( formatDate( i==0 ? date : addDate(date,1)) );
    }
    startTime = dateList[0];
    startTime = new Date( startTime.year , startTime.month , startTime.day , startTime.h , startTime.m , startTime.s );
    endTime = dateList[ dateList.length-1 ];
    endTime = new Date( endTime.year , endTime.month , endTime.day , endTime.h , endTime.m , endTime.s );
    var endMonth = parseInt( endTime.getMonth() ) +1;
    endMonth = endMonth <10 ? "0"+endMonth : endMonth;
    var startMonth = parseInt( startTime.getMonth() ) +1;
    startMonth = startMonth <10 ? "0"+startMonth : startMonth;
    return {
        endTime:endTime,
        startTime:startTime,
        // startStr:`${startTime.getFullYear()}-${startTime.getMonth()+1}-${startTime.getDate()}`,
        startStr:startTime.getFullYear()+"-"+startMonth+"-"+startTime.getDate(),
        // endStr:`${endTime.getFullYear()}-${endTime.getMonth()+1}-${endTime.getDate()}`
        endStr:endTime.getFullYear()+"-"+endMonth+"-"+endTime.getDate()
    }
}

export {
    setDate,
    addDate,
    currentFirstDate
}