Latihan-latihan Javascript - Bagian II

DASAR-DASAR PEMROGRAMAN DI JAVASCRIPT
1. Operasi dasar aritmatika
<html>
<head>
<title>contoh program javascript</title>
</head>
<script language="javascript">
function test (val1,val2)
{
document.write("<br>"+"perkalian : val1*val2 "+"<br>")
document.write(val1*val2)
document.write("<br>"+"pembagian : val1/val2 "+"<br>")
document.write(val1/val2)
document.write("<br>"+"penjumlahan : val1+val2 "+"<br>")
document.write(val1+val2)
document.write("<br>"+"pengurangan : val1-val2 "+"<br>")
document.write(val1-val2)
document.write("<br>"+"modulus : val1%val2 "+"<br>")
document.write(val1%val2)
}
</script>
<body>
<input type="button" name="button1" value="arithmetic"
onclick=test(9,4)>
</body>
</html>

2. Operasi relational
 <html>
<head>
<title>contoh program javascript</title>
</head>
<script language="javascript">
function test () {
val1=window.prompt("nilai i :")
val2=window.prompt("nilai ii :")
document.write("<br>"+"val1==val2"+"<br>")
document.write(val1==val2)
document.write("<br>"+"val1!=val2"+"<br>")
document.write(val1!=val2)
document.write("<br>"+"val1&gtval2"+"<br>")
document.write(val1>val2)
document.write("<br>"+"val1&ltval2"+"<br>")
document.write(val1<val2) }
</script>
<body>
<input type="button" name="button1" value="relational"
onclick=test()>
</body>
</html>

3. Seleksi kondisi (if..else)]
 <html>
<head>
<title>contoh if-else</title>
</head>
<body>
<script language = "javascript">
<!--
var nilai = prompt("nilai (0-100): ", 0);
var hasil = "";
if (nilai >= 60)
hasil = "lulus";
else
hasil = "tidak lulus";
document.write("hasil: " + hasil);
//-->
</script>
</body>
</html>

4. Penggunaan operator switch untuk seleksi kondisi
 <html>
<head>
<title>contoh program javascript</title>
</head>
<script language="javascript">
function test ()
{
val1=window.prompt("input nilai (1-5):")
switch (val1)
{
case "1" :
document.write("bilangan satu")
break
case "2" :
document.write("bilangan dua")
break
case "3" :
document.write("bilangan tiga")
break
case "4" :
document.write("bilangan empat")
break
case "5" :
document.write("bilangan lima")
break
default :
document.write("bilangan lainnya")
}
}
</script>
<body>
<input type="button" name="button1" value="switch"
onclick=test()>
</body>
</html>

5. Pemakaian looping < for >
 <html>
<head>
<title>contoh program javascript</title>
</head>
<body>
<script language="javascript">
<!--
for (x=0;x<=10;x++)
document.write(x+"<br>")
// -->
</script>
</body>
</html>

6. Pemakaian looping < do..while >
<html>
<head>
<title>contoh program javascript</title>
</head>
<body>
<script language="javascript">
<!--
var x=0
do{
document.write(x+"<br>")
x++;
}
while (x<=10)
// -->
</script>
</body>
</html>

7. Pemakaian looping < while >
<html>
<head>
<title>contoh program javascript</title>
</head>
<body>
<script language="javascript">
<!--
var x=0
while (x<=10){
document.write(x+"<br>")
x++;
}
// -->
</script>
</body>
</html>

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