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JavaScript JavaScript Objects Object Basics Set the Value of Object Properties

Tony Shangkuan
Tony Shangkuan
7,200 Points
Posted by Tony Shangkuan
Tony Shangkuan
7,200 Points

Is there any practical scenario that we would not want to declare an object using "let"?

I see the video using const when declaring the object, but I don't quite understand why const but not let?

1 Answer

Danny L.
Danny L.
10,837 Points
Danny L.
Danny L.
10,837 Points

A few different reasons:

  1. const if the variable won’t change (constant), let if it will
  2. helps readability, others reading your code know when a variable is constant vs when it might change
  3. Helps prevent you from mistakenly reassigning a variable in other parts of your code
  4. It becomes more necessary when using TypeScript as well