📦 Flatten Object Implementation
Category: js / utils
Difficulty: medium
Flattening an object converts a nested object structure into a single-level object where nested keys are joined with a delimiter (like underscore). This is commonly used for form data serialization, API payloads, and configuration management. ✅ Implementation [code example] 🧪 Example Usage [code example] 🔍 Output in Console [code example]...