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Copy pathscripts-START.js
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58 lines (48 loc) · 1.58 KB
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let countdown;
const timerDisplay = document.querySelector('.display__time-left');
const endTime = document.querySelector('.display__end-time');
const buttons = document.querySelectorAll('[data-time]');
function timer(seconds) {
//clear any existing timers
clearInterval(countdown);
const now = Date.now();
const then = now + seconds * 1000;
displayTimeLeft(seconds);
displayEndTime(then);
//console.log({now, then});
countdown = setInterval(() => {
const secondsLeft = Math.round((then - Date.now()) / 1000);
//check if we shoud stop countdown
if(secondsLeft < 0){
clearInterval(countdown);
return;
}
//display time
displayTimeLeft(secondsLeft);
}, 1000);
}
function displayTimeLeft(seconds) {
const minutes = Math.floor(seconds / 60);
const remainderSeconds = Math.floor(seconds % 60);
const display = `${minutes}:${remainderSeconds < 10 ? '0' : ''}${remainderSeconds}`;
document.title = display;
timerDisplay.textContent = display;
}
function displayEndTime(timestamp){
const end = new Date(timestamp);
const hour = end.getHours();
const adjustedHour = hour > 12 ? hour - 12 : hour;
const minutes = end.getMinutes();
endTime.textContent = `Be Back At ${adjustedHour}:${minutes < 10 ? '0' : ''}${minutes}`;
}
function startTimer(){
const seconds = parseInt(this.dataset.time);
timer(seconds);
}
buttons.forEach(button => button.addEventListener('click', startTimer));
document.customForm.addEventListener('submit', function(e){
e.preventDefault();
const mins = this.minutes.values;
timer(mins * 60);
this.rest();
})