where am i going wrong in this javascript code

Asked Dec 12 '22 at 12:03

Active Dec 12 '22 at 12:07

Viewed 24 times

I fairly new to javascript and can't figure out the problem with this code

const array1 = [1, 2, 3, 4];
array1.map(squareit);
let array2;

function squareit(no) {
  array2.push(no * no);
}
console.log(array2);

i have feeling my question is silly but still help me pls

this is the error i get Uncaught ReferenceError: Cannot access 'array2' before initialization

edited Dec 12 '22 at 12:07

Reyno

asked Dec 12 '22 at 12:03

Shubham

1

You need to put `array2` before call function, because when you call it the `array2` doesn't exist. – Simone Rossaini Dec 12 '22 at 12:06
@SimoneRossaini Error changed to "TypeError: Cannot read property 'push' of undefined" – Shubham Dec 12 '22 at 12:12
`let array2 = [];` instead of `let array2;` – Simone Rossaini Dec 12 '22 at 12:29
@SimoneRossaini tysm – Shubham Dec 13 '22 at 04:37

0 Answers0