Write a function `flattenArray(arr)` that flattens a nested array one level deep.
Problem Statement
Write a function `flattenArray(arr)` that flattens a nested array one level deep.
Complexity
Time Complexity: -
Space Complexity: -
Hints
š” Hint 1:
Array.flat() flattens nested arrays.
š” Hint 2:
By default, .flat() flattens one level. Pass Infinity for full flatten.
š” Hint 3:
return arr.flat();
ā
Solution:
```javascript
function flattenArray(arr) {
return arr.flat();
}
```