ES6 Iterators - the Essential Guide - JavaScript Bangla ( বাংলা ) Tutorial

Have you ever needed to loop through a list, but the operation took a significant amount of time to complete? Have you ever had a program crash because an operation used too much memory? This happened to me several times. Fortunately from ES6, JavaScript has a great feature called Iterator which improves code efficiency by letting you consume the items in a list one at a time as if they were a stream. This is an amazing value addition to JavaScript based on JavaScript Symbol. In this tutorial, I have tried to explain this concept, its characteristics and multiple use cases with examples. Iterator is a very advanced topic. I have tried my best to make it beginner friendly. Please let me know your feedback in the comment section. ▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬ 0:00 - Intro 1:10 - What is Iterable & Iterator 10:58 - Iterable Protocol 21:55 - Iterator Protocol 26:11 - Example 1 36:44 - Example 2 46:34 - Conclusion References: 1. ES6 Symbols - https://www.youtube.com/watch?v=OhXI8qsf9h8 2. Primitive & Reference Type - https://www.youtube.com/watch?v=vK8fnE_-NI0 3. Usage of "Spread Operator" in JavaScript - https://www.youtube.com/watch?v=w8gXwrD-Kg4 4. Usage of "for of" JavaScript - https://www.youtube.com/watch?v=ABJ9-ldZQkM 5. Usage of Important Object tricks - https://www.youtube.com/watch?v=eey1BnpTbKw 6. Prototype in JavaScript - https://www.youtube.com/watch?v=Z45VQuHO_VA 7. Best Practices of JavaScript - https://www.youtube.com/watch?v=NXsB6VJcscs 8. Asynchronous JavaScript - https://www.youtube.com/watch?v=IUBd76UQb34 9. MDN documentation of Iterators - https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Iterators_and_Generators 10. MDN documentation of Iteration protocols - https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols #iterator #javascript #bangla_programming_tutorial