| 3.1.1.var |
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Syntax |
var variable
var variable = value
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The var keyword is used to declare variables within a script. |
If it is used in a function, the scope of the variable is confined to that function. |
If used outside of a function, it can be accessed anywhere on the page. |
The following example shows Using the var Keyword in Three Different Instances |
<html>
<head>
<title>Examples of the var Keyword</title>
<script language="JavaScript">
<!--
var myVar = "Global";
function myFunc(){
var myVar = "Function";
return myVar;
}
function mySecFunc(){
var myVar = "Second Function";
document.write("<br>The value of myVar when called by mySecFunc() is: ");
document.write(myVar);
}
-->
</script>
</head>
<body>
<script language="JavaScript">
<!--
document.write("The value of myVar when called is: " + myVar)
document.write("<br>The value of myVar when called by myFunc() is: ");
document.write(myFunc());
mySecFunc();
-->
</script>
</body>
</html>
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