# Coding and Debugging Assessments

## Comprehensive Technical Evaluation

Assess candidates with coding and debugging challenges across 7 languages and 22 frameworks.

### Coding Assessment · Backend Engineer

#### Problem: JavaScript

**Two Sum**

Given an array of integers `nums` and a `target`, return the indices of the two numbers that add up to the target.

**Example**

```javascript
nums = [2, 7, 11, 15]

target = 9

→ [0, 1]
```

O(n) expected

#### solution.js

```javascript
function twoSum(nums, target) {
    const seen = new Map();
    for (let i = 0; i < nums.length; i++) {
        const need = target - nums[i];
        if (seen.has(need))
            return [seen.get(need), i];
        seen.set(nums[i], i);
    }
}
```

### Test results

| Test Case              | Result   |
|------------------------|----------|
| twoSum([2, 7, 11, 15], 9) | pending  |
| twoSum([3, 2, 4], 6)     | pending  |
| twoSum([3, 3], 6)        | pending  |