Write a function `flattenDeep(arr)` that completely flattens a deeply nested array.
Problem Statement
Write a function `flattenDeep(arr)` that completely flattens a deeply nested array.
Complexity
Time Complexity: -
Space Complexity: -
Hints
š” Hint 1:
Array.flat() accepts a depth argument.
š” Hint 2:
Use Infinity to flatten all levels.
š” Hint 3:
return arr.flat(Infinity);
ā
Solution:
```javascript
function flattenDeep(arr) {
return arr.flat(Infinity);
}
```