Intermediate · 20 XP

Promisify Callback Function (Variation #2)

### Promisify Callback Function (Variation #2) Convert an error-first Node.js callback function into a Promise. Write an optimal, production-ready solution adhering to JavaScript best practices and type boundaries.

Show Step-by-Step Hint

• Hint 1: Think about time complexity and edge cases in JavaScript.
• Hint 2: Review corresponding syntax and reference documentation.

Type: Code Challenge

Runtime: JAVASCRIPT

JAVASCRIPT solutionCHALLENGE #17

Promisify Callback Function (Variation #2)

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