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저는 초보자인데 카운트 다운 타이머를 썼지 만 시간을 몇 시간으로 변환하는 방법을 모르겠습니다. 나는 열심히 노력하지 않는다고 생각하지만, 새로운 열을 썼을 때마다 그것을 할 수 없다.카운트 다운 타이머 자바 스크립트 시간 (분)
다음var minutesRemaining;
var secondsRemaining;
var intervalHandle;
function resetPage() {
document.getElementById('inputArea').style.display = 'block';
//hide pause button by default
document.getElementById("pauseArea").style.display = "none";
//hide resume button
document.getElementById("resumeArea").style.display = "none";
}
function resumeCountdown() {
tick();
intervalHandle = setInterval(tick, 1000);
//hide resume button when resuming
document.getElementById("resumeArea").style.display = "none";
//show resume button;
document.getElementById("pauseArea").style.display = "block";
return;
}
function pauseCountdown() {
clearInterval(intervalHandle);
document.getElementById("pauseArea").style.display = "none";
document.getElementById("resumeArea").style.display = "block";
return;
}
function tick() {
//grab h1
var timeDisplay = document.getElementById('time');
//turn seconds into mm:55
var min = Math.floor(secondsRemaining/60);
var sec = secondsRemaining - (min * 60);
//add leading 0 if seconds less than 10
if (sec < 10) {
sec = '0' + sec;
}
//concatenate with colon
var message = min.toString() + ':' + sec;
// now change the display
timeDisplay.innerHTML = message;
//stop if down to zero
if (secondsRemaining === 0) {
alert('Done!');
clearInterval(intervalHandle);
resetPage();
}
// subtract from seconds remaining
secondsRemaining--;
}
function startCountdown() {
//get contents
var minutes = document.getElementById('minutes').value;
//check if not a number
if (isNaN(minutes)) {
alert("Please enter a number!");
return;
}
//how many seconds?
secondsRemaining = minutes * 60;
//call tick
intervalHandle = setInterval(tick, 1000);
//hide form
document.getElementById('inputArea').style.display = 'none';
//show pause when running
document.getElementById("pauseArea").style.display = "block";
}
window.onload = function() {
// create text input
var inputMinutes = document.createElement('input');
inputMinutes.setAttribute('id', 'minutes');
inputMinutes.setAttribute('type', 'text');
inputMinutes.setAttribute('placeholder', 'Idő megadása');
//pause button
var pauseButton = document.getElementById("pauseBtn");
pauseButton.onclick = function() {
pauseCountdown();
};
//resume button
var resumeButton = document.getElementById("resumeBtn");
resumeButton.onclick = function() {
resumeCountdown();
};
//create button
var startButton = document.createElement('input');
startButton.setAttribute('type', 'button');
startButton.setAttribute('value', 'Indítás');
startButton.onclick = function() {
startCountdown();
};
// add to DOM
document.getElementById('inputArea').appendChild(inputMinutes);
document.getElementById('inputArea').appendChild(startButton);
document.getElementById("pauseArea").appendChild(pauseButton);
document.getElementById("resumeArea").appendChild(resumeButton);
//hide pause button by default
document.getElementById("pauseArea").style.display = "none";
//hide pause button by default
document.getElementById("resumeArea").style.display = "none";
};
http://stackoverflow.com/questions/6312993/javascript-seconds-to-time-string-with-format-hhmmss – Ronnie