我想在表格单元格上添加事件监听器,以便每次单击表格单元格时执行一个函数。
var getDaysInMonth = function (year, month) {
return new Date(year, month, 0).getDate();
}
var calendar = {
month: function () {
var d = new Date();
return d.getMonth() + this.nextMonth;
},
year: function () {
var y = new Date();
return y.getFullYear();
},
nextMonth: 1,
cellColor: 'white',
}
var loopTable = function () {
var daysInMonth = getDaysInMonth(calendar.year(), calendar.month());
var table = document.getElementById('myTable');
var rows = table.rows;
var l = 1;
var month = calendar.month();
var year = calendar.year();
var firstDay = new Date(year + "-" + month).getDay();
var currentDay = new Date().getDay();
var dayOfMonth = new Date().getDate();
for (let i = 1; i < rows.length; i++) {
if (rows[i] == rows[1]) {
var k = 1;
for (let j = firstDay; j < rows[i].cells.length; j++) {
if (k === dayOfMonth && calendar.nextMonth === 1) {
rows[i].cells[j].style.backgroundColor = calendar.cellColor;
}
if (k <= daysInMonth) {
rows[i].cells[j].innerHTML = k;
k++
}
}
} else {
for (let j = 0; j < rows[i].cells.length; j++) {
if (k === dayOfMonth && calendar.nextMonth === 1) {
rows[i].cells[j].style.backgroundColor = calendar.cellColor;
}
if (k <= daysInMonth) {
rows[i].cells[j].innerHTML = k;
k++
}
}
}
}
}
loopTable();
clickCell();
function monthTitle() {
var monthsArray = ['Jan.', 'Feb.', 'Mar.', 'Apr.', 'May', 'Jun.', 'Jul.', 'Aug.', 'Sept.', 'Oct.', 'Nov.', 'Dec.'];
monthNum = calendar.month();
var monthName = monthsArray[calendar.month() - 1] + '' + calendar.year();
var title = document.getElementById('calendarTitle');
var nextArrow = document.getElementById('nxt');
var leftArrow = document.getElementById('prev');
if (monthName === ('Dec.' + '' + calendar.year())){
xmas();
}
if (monthNum >= 12) {
nextArrow.className += ' inactiveLink';
} else if (monthNum <= 1) {
leftArrow.className += ' inactiveLink';
} else {
nextArrow.classList.remove('inactiveLink');
leftArrow.classList.remove('inactiveLink');
}
title.innerHTML = '';
var titleNode = document.createTextNode(monthName);
title.appendChild(titleNode);
}
monthTitle();
function nextMonth() {
clearTable();
calendar.nextMonth += 1;
monthTitle();
loopTable();
}
function previousMonth() {
clearTable();
calendar.nextMonth -= 1;
monthTitle();
loopTable();
}
function clearTable() {
var table = document.getElementById('myTable');
var rows = table.rows;
for (var i = 1; i < rows.length; i++) {
cells = rows[i].cells;
for (var j = 0; j < cells.length; j++) {
if (cells[j].innerHTML = '') {
cells[j].style.display = 'none';
}
cells[j].innerHTML = '';
cells[j].style.backgroundColor = '#D9534F';
cells[j].style.emptyCells = 'hide';
}
}
}
var next = document.getElementById('nxt');
var previous = document.getElementById('prev');
var table = document.getElementById('myTable');
var cell = table.rows;
next.addEventListener('click', nextMonth);
previous.addEventListener('click', previousMonth);
function clickCell() {
var row = document.getElementById('myTable').rows;
for (var i = 0; i < row.length; i++) {
for (var j = 0; j < row[i].cells.length; j++ ) {
row[i].cells[j].addEventListener('click', function(){
console.log('click');
})
}
}
}
clickCell();
body {
background-color: rgb(0, 121, 191);
}
table {
width: 50%;
background-color: #D9534F;
border: 1px solid white;
padding: 10px;
padding-bottom: 20px;
font-size: 25px;
border-radius: 25px;
position: relative;
margin: auto;
}
td {
border: 1px solid white;
text-align: center;
font-weight: 600;
font-size: 20px;
padding: 20px;
}
th {
height: 50px;
}
.calArrows {
text-decoration: none;
color: white;
font-size: 35px;
}
#nxt {
font-size: 30px;
position: absolute;
top: 0;
right: 25%
}
#prev {
font-size: 30px;
position: absolute;
top: 0;
left: 25%;
}
#calendarTitle {
font-family: 'Indie Flower', cursive;
font-weight: 600;
font-size: 25px;
color: white;
}
.inactiveLink {
cursor: not-allowed;
pointer-events: none;
}
#myTable {
empty-cells: hide;
}
.xmasDec {
width: 90%;
height: 70%;
position: absolute;
top: -10%;
left: 5%;
}
#calWraper {
position: relative;
}
#myCan {
position: absolute;
top: 0;
left: 10%;
width: 90%;
height: 70%;
opacity: 0, 5;
}
<body>
<canvas class="myCan" width="100" height="100"></canvas>
<div id="calWraper">
<table id="myTable">
<caption id="calendarTitle">Test</caption>
<tr>
<th>Sun</th>
<th>Mon</th>
<th>Tue</th>
<th>Wed</th>
<th>Thur</th>
<th>Fri</th>
<th>Sat</th>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
</tr>
</table>
<canvas id="myCan" width="200" height="200" style="background-color: transparent"></canvas>
<a href="#" id="prev" class="calArrows"><i class="fa fa-arrow-left" ></i></a>
<a href="#" id="nxt" class="calArrows"><i class="fa fa-arrow-right" ></i></a>
</div>
</html>
我尝试创建一个函数,它将循环遍历行和单元格,并向每个单元格添加eventListener。但似乎它不起作用,在某些情况下会工作,这是非常奇怪的行为。这是我创建的函数:
function clickCell() {
var row = document.getElementById('myTable').rows;
for (var i = 0; i < row.length; i++) {
for (var j = 0; j < row[i].cells.length; j++ ) {
console.log(row[i].cells[j].innerHTML);
row[i].cells[j].addEventListener('click', function(){
console.log('click');
})
}
}
}
event.target
找出单击的是哪个单元格。 - Niet the Dark Absol