Well it is a good thing to look at looping examples to learn it thoroughly:
example looping through the headers
<html>
<body>
<script type=”text/javascript”>
for (i = 1; i <= 6; i++)
{
document.write(“<h” + i + “><center>welcome to the jungle</center>”)
document.write(“</h” + i + “>”)
}
</script>
</body>
</html>
This will loop through the heading tags using the for event
Thanks
krates
Looping is an essential part of programming you can use looping structure to loop through arrays , variables , etc
Using it
<html>
<head>
<title>Easytutorial.info for loop in javascript</title>
</head>
<body>
<script type=”text/javascript”>
var r = 10
for(i=0;i<=r;i++)
{
document.write(“Welcome to easytutorial.info <br>”)
}
</script>
</body>
</html>
the above script will print 10 times
welcome to easytutorial.info
for(i=0;i<=r;i++)
understand the above statement
for (i=0 <!– Assigning 0 to i
; <!– Sepration Operator –>
i < = r <! — Condition –>
i++ <!– Incrementation –>
{ <!– Inside this bracket the code will be executed> }
In JavaScript we have the following conditional statements:
In this session we will only use the if , else if , else
Using
i=0
if (i>10){
document.write("i is more than 10")
}
else if (i=0)
{
document.write("i is equal to 0")
}
else {
document.write("i is lol")
}
In the above code first we declare a variable named ( i )
Then we check with the if statement that is i is greater then 10 if the statement is true
The browser will print
i is more than 10
If the statement is not true it goes to the else if
and the condition in the else if is checked and if it is true it will print
i is equal to 0
Now when if and else if both are false then the else statement gets executed and prints
i is lol
Thanks
krates
Whenever you work with forms there is value field like you are working in a text field you will write
<input type=”text” name=”textfield” value=”welcome” />
Now that value is displayed adressing you what you have to write there
How the user will use it he will click on the field and delete the string welcome and write what he has to now if you want not to pain the user using a autoclear field using jscript
using onFocus
Syntax
<input type=”text” name=”n” value=”Your message” onFocus=”if(this.value==’Your message’)this.value=’ ‘;”>
Note this thing is case sensitive
means
Welcome is not equal to welcome
when changing the welcome string note this point
And you are done