How to develop a Pomodoro Timer using JavaScript?
Creating a Pomodoro Timer: HTML, CSS & JS
Table of contents
In this article i will help you develop a simple web project titled Pomodoro Timer using HTML, CSS and JavaScript.
Final Output
Youtube Video
For detailed explanation of code watch below video.
Code
HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Pomodoro Timer</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="container">
<h1>Pomodoro Timer</h1>
<div class="timer">
<div class="time-display">
<span id="minutes">25</span>:<span id="seconds">00</span>
</div>
<div class="buttons">
<button id="startBtn">Start</button>
<button id="pauseBtn">Pause</button>
<button id="resetBtn">Reset</button>
</div>
</div>
</div>
<script src="script.js"></script>
</body>
</html>
CSS
body{
font-family: Arial,sans-serif;
margin: 0;
padding: 0;
background-color: #f6f6f6;
}
.container{
max-width: 400px;
margin:20px auto;
padding: 20px;
background-color: #fff;
border-radius: 5px;
box-shadow: 0 2px 4px rgba(0,0,0,0.1);
text-align:center;
}
h1{
color:#0066cc;
margin-bottom: 20px;
}
.timer{
display: flex;
flex-direction: column;
align-items: center;
}
.time-display{
font-size: 72px;
color:#0066cc;
margin-bottom: 20px;
}
.buttons button{
padding: 10px 20px;
margin:5px;
font-size: 16px;
color:#fff;
background-color: #0066cc;
border:none;
border-radius: 4px;
cursor: pointer;
transition: background-color 0.3s ease;
}
.buttons button:hover{
background-color: #0052cc;;
}
JavaScript
var minutes = 25;
var seconds = 0;
var timer;
var isRunning = false;
function startTimer(){
isRunning = true;
timer = setInterval(function(){
if(seconds===0){
if(minutes===0){
clearInterval(timer);
isRunning = false;
alert("Time's Up");
return;
}
minutes--
seconds = 59;
}
else{
seconds--
}
document.getElementById("minutes").textContent = padTime(minutes);
document.getElementById("seconds").textContent = padTime(seconds);
},1000)
}
function pauseTimer(){
clearInterval(timer)
isRunning=false;
}
function resetTimer(){
minutes = 25;
seconds=0;
document.getElementById("minutes").textContent = "25";
document.getElementById("seconds").textContent = "00";
isRunning = false;
clearInterval(timer);
}
function padTime(time){
return time<10 ? "0"+time :time;
}
window.addEventListener('DOMContentLoaded',function(){
document.getElementById("startBtn").addEventListener('click',function(){
if(!isRunning){
startTimer();
}
});
document.getElementById("pauseBtn").addEventListener('click',function(){
if(isRunning){
pauseTimer();
}
});
document.getElementById("resetBtn").addEventListener('click',function(){
resetTimer();
});
})
I hope you find this article helpful.
Please don't forget to like, comment and share and you can also check out my other articles. Also, don't forget to subscribe to my newsletter so you can be notified about new articles.
I am looking to get into technical writing so if you want me to write an article then please connect with me on my Twitter handle here.
Let me also know which topic I should write about next.