Array Prototype ForEach — LeetCode 2804 Python Solution
EasyLeetCode PremiumJavaScript
- Problem
- #2804
- Reading time
- 2 min
- Source
- leetcode.com
The problem
Write your version of method forEach that enhances all arrays such that you can call the array.forEach(callback, context) method on any array and it will execute callback on each element of the array. Method forEach should not return anything.
Example
- Input
- arr = [1,2,3],
- Output
- [2,4,6]
- Explanation
- arr.forEach(callback, context)
Complexity
| Measure | Complexity |
|---|---|
| Time | O(n) |
| Space | O(1) to O(n) auxiliary |
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- LeetCode 2804. Array Prototype ForEach is tagged JavaScript on LeetCode.
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