加入日曆數據的 js
data.js (寫了一大堆註解)
(function(){
var datepicker = {};
datepicker.getMonthData = function(year,month){
var ret = []; //用來返回結果
if(!year || !month){
var today = new Date();
year = today.getFullYear();
month = today.getMonth() + 1; //如果用getMonth()會得到真實月份減1的月份,因此要+1才會得到真實月份
//如果沒有傳year或month就用當前日期
}
var firstDay = new Date(year,month - 1,1); //這個月的第一天, month需要-1
var firstDayWeekDay = firstDay.getDay(); //在當月月曆前需要補上個月的日期,獲取第一天是星期幾
if(firstDayWeekDay === 0) firstDayWeekDay = 7; //如果是週日就是7
year = firstDay.getFullYear();
month = firstDay.getMonth()+1;
var lastDayOfLastMonth = new Date(year,month - 1, 0);//上個月的最後一天,也就是這個月的第0天
var lastDateOfLastMonth = lastDayOfLastMonth.getDate();
var preMonthDayCount = firstDayWeekDay - 1; //需要顯示多少上個月的日期
var lastDay = new Date(year,month,0); //當月最後一天,需要知道什麼時候算是下個月,下個月的第0天等於本月最後一天
var lastDate = lastDay.getDate();
for(var i = 0; i < 7 * 6; i++){
//得到當月每一天的數據
var date = i + 1 - preMonthDayCount;//減去上個月的
var showDate = date;//用來算應該顯示的是哪一天
var thisMonth = month;
if(date <= 0){
//上個月
thisMonth = month - 1 ; //小於等於0,所以是上個月的,這個月-1
showDate = lastDateOfLastMonth + date; //上個月的最後一天減去date,他本身就是負的所以該加date
}else if(date > lastDate){
//下個月
thisMonth = month + 1; //date大於本月最後一天就是下個月,這個月+1
showDate = showDate - lastDate; //減去當月最後一天得到下個月的日期
}
if(thisMonth === 0) thisMonth = 12; //去年12月
if(thisMonth === 12) thisMonth = 1; //明年1月
ret.push({
month:thisMonth,
date:date,
showDate : showDate
});
}
return {
year: year,
month: month,
days: ret
};
};
window.datepicker = datepicker;
})();
套到頁面的 main.js
(function(){
var datepicker = window.datepicker;
datepicker.buildUi = function(year,month){
var monthData = datepicker.getMonthData(year,month);
//日曆html結構
var html = '<div class="ync-datepicker-header">' +
'<a href="#" class="ync-datepicker-btn ync-datepicker-prev-btn"><</a>' +
'<a href="#" class="ync-datepicker-btn ync-datepicker-next-btn">></a>' +
' <span class="ync-datepicker-curr-month">' + monthData.year + '-' + monthData.month + '</span>' +
'</div>' +
'<div class="ync-datepicker-body">' +
'<table>' +
'<thead>' +
'<tr>' +
'<th>一</th>' +
'<th>二</th>' +
'<th>三</th>' +
'<th>四</th>' +
'<th>五</th>' +
'<th>六</th>' +
'<th>日</th>' +
'</tr>' +
'</thead>' +
'<tbody>';
for(var i = 0; i<monthData.days.length; i++){
var date = monthData.days[i];
if(i%7 === 0){
//i被7整除是一週的第一天
html += '<tr>';
}
html += '<td>' + date.showDate + '</td>';
if(i%7 === 6){
//i被7除的時候餘6則是一週的最後一天
html += '</tr>';
}
}
html += '</tbody>' +
'</table>' +
'</div>';
return html;
};
//內容放到頁面顯示
datepicker.init = function($input){
var html = datepicker.buildUi();
var $wrapper = document.createElement('div');
$wrapper.className = 'ync-datepicker-wrapper';
$wrapper.innerHTML = html;
document.body.appendChild($wrapper);
};
})();
*本日心得 :month+1 -1 要弄清楚,date 、 data一直狂拼錯覺得累
一樣放在 這裡
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