| Function Pre Defined Function User Defined Function in Java Script |
JavaScript : Function Pre Defined Function User Defined Function
Sample JavaScript
<head>
<script type="text/javascript" language="javascript">
alert("welcome")
</script>
</head>
Sample Java Script 2
<head>
<input type="button" value="click" onClick='alert("Button Clicked")'>
</head>
<input type="button" value="click" onClick='alert("Button Clicked")'>
</head>
Function: Function is an set of executable statements and functions we are using for reasonability’s. Function divided into two parts.
*Pre Defined Function: This functions are nothing but building function which are available with languages. Ex: alert, presInt, evil
*User Defined Function: Functions defined by the programmers at the time of application development. By using this function keyword we can declare the functions. The syntax of function declaration is ..
Function<name>()
{
//Java Script Statement
}
{
//Java Script Statement
}
SAMPLE JAVA SCRIPT 2
<script>
function fun1()
{
alert("PHP NOTES SCRIPT")
}
</script>
<input type="button" value="click" onClick="fun1()">
function fun1()
{
alert("PHP NOTES SCRIPT")
}
</script>
<input type="button" value="click" onClick="fun1()">
SAMPLE JAVA SCRIPT 3
<script>
function fun1(x,y)
{
alert(x+y)
}
</script>
<input type="button" value="click" onClick="fun1(10,20)">
function fun1(x,y)
{
alert(x+y)
}
</script>
<input type="button" value="click" onClick="fun1(10,20)">
SAMPLE JAVA SCRIPT 3
<script>
fonction fun1()
{
rval=fun2()
alert("rval")
}
function fun2()
{
x=100;y=200;k=x+y;return k
}
</script>
<input type="button" value="click" onClick="fun1()">
fonction fun1()
{
rval=fun2()
alert("rval")
}
function fun2()
{
x=100;y=200;k=x+y;return k
}
</script>
<input type="button" value="click" onClick="fun1()">
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