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Check if Array is Sorted

Given an array of integers, check whether the array is sorted in non-decreasing order.

Difficulty:

JavaScript Solution

function isSorted(nums) {
  for (let i = 1; i < nums.length; i++) {
    if (nums[i] < nums[i - 1]) return false;
  }
  return true;
}

Explanation: We compare each element with its previous element to ensure order.

⏱ O(n) | 💾 O(1)

Console

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