JavaScript 倒数计时器在达到 1 天、1 秒、1 分钟时更改文本

Question

我有一个JavaScript倒数计时器，HTML中带有复数标签："天"，"小时"，"分钟"，"秒"。当每个相应的计时器达到"1"时，我需要将 HTML 中的标签更改为单数版本，因此"天"、"小时"等......

我将如何做到这一点？提前谢谢你。

var eventDate = 'Dec 16 2017 9:24:18 GMT-0400';
function time_remaining(endtime) {
var t = Date.parse(endtime) - Date.parse(new Date());
var seconds = Math.floor((t / 1000) % 60);
var minutes = Math.floor((t / 1000 / 60) % 60);
var hours = Math.floor((t / (1000 * 60 * 60)) % 24);
var days = Math.floor(t / (1000 * 60 * 60 * 24));
return {
'total': t,
'days': days,
'hours': hours,
'minutes': minutes,
'seconds': seconds
};
}
function run_clock(id, endtime) {
var clock = document.getElementById(id);
// get spans where our clock numbers are held
var days_span = clock.querySelector('.days');
var hours_span = clock.querySelector('.hours');
var minutes_span = clock.querySelector('.minutes');
var seconds_span = clock.querySelector('.seconds');
function update_clock() {
var t = time_remaining(endtime);
// update the numbers in each part of the clock
days_span.innerHTML = t.days;
hours_span.innerHTML = ('0' + t.hours).slice(-2);
minutes_span.innerHTML = ('0' + t.minutes).slice(-2);
seconds_span.innerHTML = ('0' + t.seconds).slice(-2);
if (t.total <= 0) {
clearInterval(timeinterval);
document.getElementById("clockdiv").style.display = "none";
}
}
update_clock();
var timeinterval = setInterval(update_clock, 1000);
}
run_clock('clockdiv', eventDate);

.clockWrap {
text-align: center;
font-weight: 700;
font-size: 50px;
max-width: 100%;
}
h1.clock {
color: #595959;
font-size: 30px;
line-height: 36px;
margin: 0;
padding: 50px 0 30px;
}
.day {
padding-right: 44px;
}
.colon {
font-size: 30px;
padding-right: 25px;
padding-left: 25px;
line-height: 60px;
}
/*--Colors--*/
.red {
color: #fc5852;
}
.blue {
color: #24a5f4;
}
.orange {
color: #ffaa00;
}
.grey {
color: #b3b3b3;
}
.green {
color: #35b134;
}
#clockdiv {
display: inline-block;
text-align: center;
}
#clockdiv>div {
padding-bottom: 50px;
display: inline-block;
}
.smalltext {
padding-top: 5px;
font-size: 18px;
line-height: 24px;
font-weight: 400;
text-transform: uppercase;
}
@media only screen and (max-width: 540px) {
.timeWrapper {
width: 167px;
margin: auto;
padding-bottom: 15px;
}
h1.clock {
font-size: 20px;
line-height: 36px;
padding: 18px 0 5px;
}
.day {
padding-right: 0;
}
.colon {
display: none !important;
}
#clockdiv {
text-align: left !important;
}
#clockdiv>div {
padding-bottom: 4px;
display: inline-block;
}
.smalltext {
padding-top: 19px;
padding-left: 15px;
font-size: 18px;
line-height: 24px;
float: right;
}
}

<div class="clockWrap">
<div class="timeWrapper">
<div id="clockdiv">
<h1 class="clock">Event will start in</h1>
<div class="day blue"> <span class="days"></span>
<div class="smalltext">Days</div>
</div>
<div class="orange"><span class="hours"></span>
<div class="smalltext">Hours</div>
</div>
<div class="colon grey"><span>:</span>
<div class="smalltext">&nbsp;</div>
</div>
<div class="green"><span class="minutes"></span>
<div class="smalltext">Minutes</div>
</div>
<div class="colon grey"> <span>:</span>
<div class="smalltext">&nbsp;</div>
</div>
<div class="red"><span class="seconds"></span>
<div class="smalltext">Seconds</div>
</div>
</div>
</div>
</div>

Answer 1

你可以做这样的事情：

var eventDate = 'Jul 18 2017 20:24:18 GMT-0400';
function time_remaining(endtime) {
var t = Date.parse(endtime) - Date.parse(new Date());
var seconds = Math.floor((t / 1000) % 60);
var minutes = Math.floor((t / 1000 / 60) % 60);
var hours = Math.floor((t / (1000 * 60 * 60)) % 24);
var days = Math.floor(t / (1000 * 60 * 60 * 24));
return {
'total': t,
'days': days,
'hours': hours,
'minutes': minutes,
'seconds': seconds
};
}
function run_clock(id, endtime) {
var clock = document.getElementById(id);
// get spans where our clock numbers are held
var days_span = clock.querySelector('.days');
var hours_span = clock.querySelector('.hours');
var minutes_span = clock.querySelector('.minutes');
var seconds_span = clock.querySelector('.seconds');
var days_title = document.getElementById('days_title');
var hours_title = document.getElementById('hours_title');
var mins_title = document.getElementById('mins_title');
var secs_title = document.getElementById('secs_title');
function update_clock() {
var t = time_remaining(endtime);
// update the numbers in each part of the clock
days_span.innerHTML = t.days;
// Determine title for Day(s)
if (t.days === 1) {
days_title.innerHTML = 'Day';
} else {
days_title.innerHTML = 'Days';
}
// Determine title for Hour(s)
hours_span.innerHTML = ('0' + t.hours).slice(-2);
if (t.hours === 1) {
hours_title.innerHTML = 'Hour';
} else {
hours_title.innerHTML = 'Hours';
}
// Determine title for Min(s)
minutes_span.innerHTML = ('0' + t.minutes).slice(-2);
if (t.minutes === 1) {
mins_title.innerHTML = 'Minute';
} else {
mins_title.innerHTML = 'Minutes';
}
// Determine title for Sec(s)
seconds_span.innerHTML = ('0' + t.seconds).slice(-2);
if (t.seconds === 1) {
secs_title.innerHTML = 'Second';
} else {
secs_title.innerHTML = 'Seconds';
}
if (t.total <= 0) {
clearInterval(timeinterval);
document.getElementById("clockdiv").style.display = "none";
}
}
update_clock();
var timeinterval = setInterval(update_clock, 1000);
}
run_clock('clockdiv', eventDate);

.clockWrap {
text-align: center;
font-weight: 700;
font-size: 50px;
max-width: 100%;
}
h1.clock {
color: #595959;
font-size: 30px;
line-height: 36px;
margin: 0;
padding: 50px 0 30px;
}
.day {
padding-right: 44px;
}
.colon {
font-size: 30px;
padding-right: 25px;
padding-left: 25px;
line-height: 60px;
}
/*--Colors--*/
.red {
color: #fc5852;
}
.blue {
color: #24a5f4;
}
.orange {
color: #ffaa00;
}
.grey {
color: #b3b3b3;
}
.green {
color: #35b134;
}
#clockdiv {
display: inline-block;
text-align: center;
}
#clockdiv>div {
padding-bottom: 50px;
display: inline-block;
}
.smalltext {
padding-top: 5px;
font-size: 18px;
line-height: 24px;
font-weight: 400;
text-transform: uppercase;
}
@media only screen and (max-width: 540px) {
.timeWrapper {
width: 167px;
margin: auto;
padding-bottom: 15px;
}
h1.clock {
font-size: 20px;
line-height: 36px;
padding: 18px 0 5px;
}
.day {
padding-right: 0;
}
.colon {
display: none !important;
}
#clockdiv {
text-align: left !important;
}
#clockdiv>div {
padding-bottom: 4px;
display: inline-block;
}
.smalltext {
padding-top: 19px;
padding-left: 15px;
font-size: 18px;
line-height: 24px;
float: right;
}
}

<div class="clockWrap">
<div class="timeWrapper">
<div id="clockdiv">
<h1 class="clock">Event will start in</h1>
<div class="day blue"> <span class="days"></span>
<div class="smalltext" id="days_title"></div>
</div>
<div class="orange"><span class="hours"></span>
<div class="smalltext" id="hours_title"></div>
</div>
<div class="colon grey"><span>:</span>
<div class="smalltext">&nbsp;</div>
</div>
<div class="green"><span class="minutes"></span>
<div class="smalltext" id="mins_title"></div>
</div>
<div class="colon grey"> <span>:</span>
<div class="smalltext">&nbsp;</div>
</div>
<div class="red"><span class="seconds"></span>
<div class="smalltext" id="secs_title"></div>
</div>
</div>
</div>
</div>