What are variables in JavaScript?
Variables in JavaScript are containers for storing data values. They can hold different types of data.
How do I declare a variable?
You can declare a variable using the keywords var
, let
, or const
. For example: let x = 5;
.
What's the difference between let
and const
?
let
allows you to reassign the variable, while const
creates a constant variable that cannot be reassigned.
Can you give me an example of using a variable in a function?
Sure! Here's an example: function add(a, b) { return a + b; }
where a
and b
are variables.
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