Learn
As mentioned in the previous exercise, the let
keyword was introduced in ES6. The let
keyword signals that the variable can be reassigned a different value. Take a look at the example:
let meal = 'Enchiladas'; console.log(meal); // Output: Enchiladas meal = 'Burrito'; console.log(meal); // Output: Burrito
Another concept that we should be aware of when using let
(and even var
) is that we can declare a variable without assigning the variable a value. In such a case, the variable will be automatically initialized with a value of undefined
:
let price; console.log(price); // Output: undefined price = 350; console.log(price); // Output: 350
Notice in the example above:
- If we don’t assign a value to a variable declared using the
let
keyword, it automatically has a value ofundefined
. - We can reassign the value of the variable.
Instructions
1.
Create a let
variable called changeMe
and set it equal to the boolean true
.
2.
On the line after changeMe
is declared, set the value of changeMe
to be the boolean false
.
To check if changeMe
was reassigned, log the value saved to changeMe
to the console.
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