JavaScript Promises Part 1 - Callback Hell in Sinhala

JavaScript Promises Tutorial in Sinhala (Part 1 of 3) Callback Hell Link to important videos: Callback Functions:    • Callback Functions - JavaScript in Sinhala   Other JavaScript Tutorials: JavaScript for Beginners:    • JavaScript Tutorial in Sinhala   Advanced JavaScript Tutorial in Sinhala:    • Advanced JavaScript Tutorial in Sinhala