Primitive Value
Primitive Values are number, string, undefined null, booleans, symbols, bigInts. We can’t manipulate Primitive Values by our code. We can only use them when we need them.
Non-Primitive Values
Non-Primitive values are objects and functions. We can easily see the difference in the browser console. The browser will display them differently from primitive values. We can manipulate Non-Primitive values by our code.
Expressions
Expressions are like a question, but not all types of questions. Expressions are the types of questions that JavaScript can answer. The expression always returns a single value.
Checking The type
We can easily check the data type of a JavaScript variable. To check the data type of a variable, we have to use a built-in function typeOf().
There is an interesting thing in there. It will work fine if we don’t use the parentheses. But sometimes it doesn’t work. We must use parentheses when trying to check a function type value unless it shows some errors.
No other type
There is no other type of values in JavaScript than primitive values and objects and functions. We can check on the browser console by using typeOf function. Someone can think the string is also an object. But it is not true. It is just an illusion.
