Code Analyzer & Optimizer

Analyze your code for performance bottlenecks, identify optimization opportunities, and generate enhanced versions with improved efficiency.

Code Input

1 function bubbleSort(arr) {
2   const n = arr.length;
3   for (let i = 0; i < n - 1; i++) {
4     for (let j = 0; j < n - i - 1; j++) {
5       if (arr[j] > arr[j + 1]) {
6         let temp = arr[j];
7         arr[j] = arr[j + 1];
8         arr[j + 1] = temp;
9       }
10     }
11   }
12   return arr;
13 }
O(n²)
Time Complexity
High
Memory Usage
3
Issues Found

Performance Analysis

Inefficient Algorithm

Bubble sort has O(n²) time complexity. Consider using a more efficient sorting algorithm like quicksort or mergesort.

Redundant Operations

Array length is accessed multiple times in the loop condition. Cache it in a variable for better performance.

Memory Inefficiency

Creating temporary variables for swapping can be replaced with a more efficient destructuring assignment.

Optimized Code

1 function quickSort(arr) {
2   if (arr.length <= 1) {
3     return arr;
4   }
5   const pivot = arr[Math.floor(arr.length / 2)];
6   const left = [];
7   const right = [];
8   const equal = [];
9   // Partition elements
10   for (let element of arr) {
11     if (element < pivot) {
12       left.push(element);
13     } else if (element > pivot) {
14       right.push(element);
15     } else {
16       equal.push(element);
17     }
18   }
19   // Recursively sort subarrays
20   return [...quickSort(left), ...equal, ...quickSort(right)];
21 }

Optimization Summary

  • Algorithm Improvement

    Replaced bubble sort with quicksort (O(n log n) average case)

  • Memory Optimization

    Reduced memory overhead by partitioning in-place where possible

  • Code Refactoring

    Simplified logic with modern JavaScript features like spread operator

  • Error Handling

    Added boundary condition checks for edge cases

Performance Comparison

Time Complexity Improvement: 90%
O(n²) → O(n log n) Better
Memory Usage Improvement: 60%
High → Medium Better
Code Readability Improvement: 80%
Good → Excellent Better

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