Apa saja sih yang bisa dibangun dengan javascript:
Javascript bisa apa saja?
1. Javascript bisa mengubah isi dari html
Misalnya:
document.getElementById("demo").innerHTML = "Hello JavaScript";
2. Javascript bisa mengubah atribut / properti html
Misalnya:
3. Javascript bisa memvalidasi data. Contoh sebagai berikut:
<!DOCTYPE html>
<html>
<body>
<h1>JavaScript Can Validate Input</h1>
<p>Please input a number between 1 and 10:</p>
<input id="numb" type="number">
<button type="button" onclick="myFunction()">Submit</button>
<p id="demo"></p>
<script>
function myFunction() {
var x, text;
// Get the value of the input field with id="numb"
x = document.getElementById("numb").value;
// If x is Not a Number or less than one or greater than 10
if (isNaN(x) || x < 1 || x > 10) {
text = "Input not valid";
} else {
text = "Input OK";
}
document.getElementById("demo").innerHTML = text;
}
</script>
</body>
</html>
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