获取当前月份的第一天和最后一天

[endday]

function timeFormat (date) {
    if (!date || typeof (date) === 'string') {
        throw Error('参数异常，请检查...')
    }
    var y = date.getFullYear() //年
    var m = date.getMonth() + 1 //月
    var d = date.getDate() //日
    return y + '-' + m + '-' + d
}

function getMonthFirstDay () {
    var date = new Date()
    date.setDate(1)
    return timeFormat(date)
}

function getMonthLastDay () {
    var curDate = new Date()
    var curMonth = curDate.getMonth()
    curDate.setMonth(curMonth + 1)
    curDate.setDate(0)
    return timeFormat(curDate)
}