There’s a difference between declaring/creating a variable and assigning a value to it using the assignment operator.
Declare / Create a variable in JavaScript
So if we have something like this:
let myNum; // undefined
Here, we are creating/declaring a variable but it has no value in it. Thus it’s undefined. (undefined is a data type in JavaScript. we’ll cover in the next few videos)
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Assign/ Set a value to the variable above
myNum = 20; // result or value is 20
Here we used = sign to set/assign the value 20 to variable called myNum
You can also declare and assign to an initial value at the same line. Like so:
// Create And Assign value at the same line let myAge = 29;
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