JS 獲取當前年-月-日及當月一號

// 補零函數
function doHandleZero(zero) {
    var date = zero;
    if (zero.toString().length == 1) {
        date = "0" + zero;
    }
    return date;
}
// 獲取每個月一號
function getDate() {
    var myDate = new Date();
    var tYear = myDate.getFullYear()
    var tMonth = myDate.getMonth()
    tMonth = doHandleZero(tMonth + 1)

    return tYear + "-" + tMonth + "-01"
}
// 獲取當前年-月-日
function getDateNow() {
    var myDate = new Date();
    var tYear = myDate.getFullYear()
    var tMonth = myDate.getMonth()
    var tDay = myDate.getDate()
    tMonth = doHandleZero(tMonth + 1)
    tDay = doHandleZero(tDay)

    return tYear + "-" + tMonth + "-" + tDay
}