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bulb.html
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bulb.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Bulb</title>
<style>
.centre{
display: block;
margin-left: auto;
margin-right: auto;
width: 600px;
}
.btn{
padding: 15px;
background-color: red;
}
</style>
</head>
<body style="background-color: black;">
<img id="bulb" src="bulboff.jpg" alt="" class="centre">
<button id="blbbtn" class="centre btn">Turn On</button>
<script>
let btn = document.getElementById('blbbtn');
let bulb = document.getElementById('bulb');
btn.addEventListener('click', toggleblb)
function toggleblb(e){
if(btn.textContent.includes('On')){
bulb.src = "bulbon.jpg"
btn.textContent = "Turn Off"
}
else{
bulb.src = "bulboff.jpg"
btn.textContent = "Turn On"
}
}
</script>
</body>
</html>