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bonaxcrimo/alert.html

Created November 8, 2016 08:57
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Alert ketika inputbox kosong
Raw
alert.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Alert</title>
</head>
<body>
<input type="text" name="" id="nama">
<button onclick="cek()">Kirim</button>
<script type="text/javascript">
function cek(){
var nama=document.getElementById("nama");
if(nama.value.trim() == "")
alert("Tidak boleh kosong");
else
alert("Nama anda "+nama.value);
}
</script>
</body>
</html>
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