Currently, I am utilizing VS Code along with TSLint. In one instance, TSLint recommended that I change the declaration of an array variable from let to const, providing this code snippet:
let pages = [];
"Identifier 'pages' is never reassigned; use 'const' instead of 'let'. (prefer-const)"
However, considering that arrays are mutable variables, why would using const be preferred over let in this context?
When using the const keyword in JavaScript, it does not determine whether the data itself is mutable or immutable, but rather if the identifier can be reassigned to a different value. For example:
const foo = [1,2,3]
foo = [4,5,6]
The above code would throw an error because you cannot reassign a const variable. However, with let:
let foo = [1,2,3]
foo = [4,5,6]
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