Avoiding Errors with () and [] in Arrays

Modified on Wed, 31 Jul at 11:11 AM

Access array element

Array Destructuring

Incorrect way ( ❌ )

const numbers = [1, 2, 3, 4, 5];

numbers(0)

const numbers = [1, 2, 3, 4, 5];

const (first, second) = numbers

Correct way ( ✅ )

numbers[0]

const [first, second] = numbers

Confusing method invocation () with array access []

Can you figure out the issue in the below code:

Issue:

push is invoked with parentheses (), not square brackets []

Fixed Code:

Methods are invoked using parentheses (), not square brackets []. Square brackets are used to access array elements.

Can you figure out the issue in the below code:

Issue:

Parentheses () are used instead of square brackets [] for array destructuring.

Fixed Code:

Array destructuring uses square brackets `[]` to match the structure of an array.