- Variables declared within a JavaScript function, become LOCAL to the function.
- Local variables have local scope: They can only be accessed within the function.
- If you trying to access the local variable from other function it will return undefined texti
Code:-
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<h1>Local Variable</h1>
<p>A local variable can only be accessed from within the function </p>
<input type="button" onclick="cal_fun1();" value="Function 1">
<input type="button" onclick="cal_fun2();" value="Function 2">
<script>
function cal_fun1()
{
var carname = "bus";
alert(typeof(carname));
}
function cal_fun2()
{
//Here we can't access carname variable
alert(typeof(carname));
}
</script>
</body>
</html>
Important Note
If you declare the variable without varkeyword, it will consider as global variable.
What is a local variable:- JavaScript
Reviewed by Network security
on
June 03, 2019
Rating:
Reviewed by Network security
on
June 03, 2019
Rating:
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