A program that will ask the user to give a number and then the program will check if the given number is a prime number or not using JavaScript programming language. I am currently accepting programming work, IT projects, school and application development, programming projects, thesis and capstone projects, IT consulting work, computer tutorials, and web development work kindly contact me in the following email address for further details. If you want to advertise on my website kindly contact me also in my email address also. Thank you. My email address is the following jakerpomperada@gmail.com, jakerpomperada@aol.com, and jakerpomperada@yahoo.com. My mobile number here in the Philippines is 09173084360. Please subscribe to my channel https://www.youtube.com/channel/UCOs-lpOoIeJoh6gpJthPoGg ================================================= Want to support my channel? GCash Account Jake Pomperada 09173084360 Paypal https://paypal.me/jakerpomperada Patreon https://www.patreon.com/jakerpomperada Thank you very much for your support
Program Listing
<!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>Prime Number Checker in JavaScript</title>
<style>
* {
box-sizing: border-box;
margin: 0;
padding: 0;
}
body {
min-height: 100vh;
display: flex;
justify-content: center;
align-items: center;
background-color: #AAAF99;
color: #000;
font-family: sans-serif;
}
main {
padding: 50px;
border-radius: 10px;
background-color: #fff;
min-width: 500px;
}
h1 {
margin-bottom: 5px;
font-size: 28px;
text-align: center;
}
h2 {
margin-bottom: 30px;
font-size: 20px;
text-align: center;
}
.block {
margin: 0 auto 12px;
display: flex;
align-items: center;
}
label {
display: block;
width: 35%;
line-height: 40px;
background-color: #2F4C58;
color: #eee;
text-align: center;
}
input {
padding: 10px;
width: 65%;
font-size: 14px;
border-radius: 0 5px 5px 0;
border: 2px solid #000;
outline: none;
}
.btnBlock {
display: flex;
width: 100%;
}
.btn {
display: inline-block;
padding: 15px;
background-color: #63A583;
color: #fff;
outline: none;
border: none;
cursor: pointer;
width: 150px;
width: 50%;
font-size: 16px;
text-decoration: none;
text-align: center;
transition: all .2s;
}
.btnReset {
background-color: #6E93D6;
}
.btn:hover {
opacity: 0.9;
}
.average {
display: block;
width: 100%;
margin-top: 12px;
padding: 20px 0;
background-color: #2F4C58;
font-size: 16px;
text-align:center;
color: #f3f3f3;
}
.hide {
display: none;
}
</style>
</head>
<body>
<main class="container">
<h1>PRIME NUMBER CHECKER IN JAVASCRIPT</h1>
<h2>Jake R. Pomperada, MAED-IT, MIT</h2>
<form action="" id="frmCalc">
<div class="block">
<label for="val_num">Give A Number</label>
<input type="number" min="1" max="100" id="val_num" autofocus required>
</div>
<div class="btnBlock">
<button type="submit" class="btn">SUBMIT</button>
<a href="" class="btn btnReset">RESET</a>
</div><br>
<div class="display_result hide"></div>
</form>
</main>
<script>
document.querySelector('#frmCalc').onsubmit = (e) => {
e.preventDefault()
let i=0, chk=0;
let display = document.querySelector('.display_result'),
arr = document.getElementById("val_num");
num_val = 0;
num_val = parseInt(arr.value);
for(i=2; i<num_val; i++)
{
if(num_val%2==0)
{
chk++;
break;
}
}
if(chk==0)
result = num_val + " is a Prime Number";
else
result = num_val + " is not a Prime Number";
display.classList.remove('hide');
display.innerHTML = "<h1>" + result + "</h1>";
}
</script>
</body>
</html>