EasyNo. 2804LeetCode Premium
Array Prototype ForEach — LeetCode 2804 Python Solution
- Topics
- JavaScript
- 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
- Time
- O(n)
- Space · auxiliary
- O(1) to O(n)
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Frequently asked questions
- How hard is LeetCode 2804. Array Prototype ForEach?
LeetCode 2804. Array Prototype ForEach is rated Easy on LeetCode.
- What topics does LeetCode 2804. Array Prototype ForEach cover?
LeetCode 2804. Array Prototype ForEach is tagged JavaScript on LeetCode.
- Is LeetCode 2804. Array Prototype ForEach a premium problem?
Yes. LeetCode 2804. Array Prototype ForEach is a LeetCode Premium problem, so the full statement and test cases require a paid LeetCode subscription.