Declaring variables and using them in JavaScript

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Javascript Variable
JavaScript variables are containers for storing data values.
JavaScript variables can hold numbers like 100, and text values like "John".
The Assignment Operator
Here, the equal sign (=) is an "assignment" operator, not an "equal to" operator.

 An example which Create a variable, assign a value to it, and display it:-

<html>
<body>
<script>
<!--Using Variables-->
var carName = "Swift";
alert(carName);
</script>
</body>
</html>

Result:

Alert Showing the value of the variable carName

Description:
The Above program stores the string swift  in a variable carName  which later is displayed on a web browser through an alert

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