Variable (Variable)
For that variable Essentially, its function is to store a value (value), which can sometimes be used to calculate the fee or charge of any kind. For reference or to check when needed. A variable in JavaScript, it begins with the word var followed by the variable name.
An example of a variable declaration
Code:
var x;
If a variable is declared dormant. It will be used later The conclusion is a variable that has no value at all.
Code:
var x=10;
For this case, the variable is declared and assigned a value by an equal sign
JavaScript defines the basic data types (primitive data types) to use three types, that is.
- Numbers such as 3, 5, 7, 9.
- Letters such as "I am", "SuperHero".
-boolean (true or not the fact) as "true" (true), "false" (not really).
Example:
<html>
<body>
<script>
var age=23;
var name="Harry Potter";
var answer="Correct";
document.write(age + "<br>");
document.write(name + "<br>");
document.write(answer + "<br>");
</script>
</body>
</html>
This is the result:
Next
