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Javascript

Contoh 1

Menulis teks dengan Javascript



document.write("This is my first JavaScript!");

Hasil di browser

 

This is my first JavaScript!

 

 

Contoh 2

Menulis tag HTML dengan Javascript



document.write("

Hello World!

");

 

Hasil di browser

Hello World!

 

 

Contoh 3

Javasript di body section




document.write("This message is written by JavaScript");

Hasil di browser

 

This message is written by JavaScript

 

 

Contoh 4

Javasript di head section




function message()
{
alert("This alert box was called with the onload event");
}

 

Hasil di browser

 

Contoh 5

Javascript eksternal





The actual script is in an external script file called "xxx.js".

 

Hasil di browser

 

This text was written by an external script!

The actual script is in an external script file called "xxx.js".

 

 

Contoh 6

Javascript statement



document.write("

This is a heading

");
document.write("

This is a paragraph.

");
document.write("

This is another paragraph.

");

 

Hasil di browser

This is a heading

This is a paragraph.

This is another paragraph.

 

 

 

Contoh 7

Javascript block



{
document.write("

This is a heading

");
document.write("

This is a paragraph.

");
document.write("

This is another paragraph.

");
}

 

 

Hasil di browser

This is a heading

This is a paragraph.

This is another paragraph.

 

 

Contoh 8

Comment satu baris



// Write a heading
document.write("

This is a heading

");
// Write two paragraphs:
document.write("

This is a paragraph.

");
document.write("

This is another paragraph.

");

 

 

 

Hasil di browser

This is a heading

This is a paragraph.

This is another paragraph.

 

 

Contoh 9

Comment beberapa baris



/*
The code below will write
one heading and two paragraphs
*/
document.write("

This is a heading

");
document.write("

This is a paragraph.

");
document.write("

This is another paragraph.

");

 

Hasil di browser

This is a heading

This is a paragraph.

This is another paragraph.

 

 

Contoh 10

Satu baris comment untuk mencegah eksekusi



//document.write("

This is a heading

");
document.write("

This is a paragraph.

");
document.write("

This is another paragraph.

");

 

 

Hasil di browser

 

This is a paragraph.

This is another paragraph.

 

 

Contoh 11

Variabel, nilai dan tampilan



var firstname;
firstname="Hege";
document.write(firstname);
document.write("
");
firstname="Tove";
document.write(firstname);

 

The script above declares a variable,
assigns a value to it, displays the value, changes the value,
and displays the value again.

 

 

 

 

Contoh 12

Pernyataan If

 


var d = new Date();
var time = d.getHours();

if (time < 10)
{
document.write("Good morning");
}

 

This example demonstrates the If statement.


If the time on your browser is less than 10, you will get a "Good morning" greeting.

 

 

 

Hasil di browser

 

This example demonstrates the If statement.

If the time on your browser is less than 10, you will get a "Good morning" greeting.

 

 

Contoh 13

Pernyataan If ... Else



var d = new Date();
var time = d.getHours();

if (time < 10)
{
document.write("Good morning");
}
else
{
document.write("Good day");
}

 


This example demonstrates the If...Else statement.

 

 


If the time on your browser is less than 10,
you will get a "Good morning" greeting.
Otherwise you will get a "Good day" greeting.

 

Hasil di browser

 

Good day

This example demonstrates the If...Else statement.

If the time on your browser is less than 10, you will get a "Good morning" greeting. Otherwise you will get a "Good day" greeting.

 

 

Contoh 14

Link acak



var r=Math.random();
if (r>0.5)
{
document.write("Learn Web Development!");
}
else
{
document.write("Visit Refsnes Data!");
}

 

Contoh 15

Pernyataan switch



var r=Math.random();
if (r>0.5)
{
document.write("Learn Web Development!");
}
else
{
document.write("Visit Refsnes Data!");
}

Hasil di browser

 

I'm really looking forward to this weekend!

This JavaScript will generate a different greeting based on what day it is. Note that Sunday=0, Monday=1, Tuesday=2, etc.

 

 

Contoh 16

Alert box




function show_alert()
{
alert("I am an alert box!");
}


 

 

Hasil di browser