Hi, Rayhan here!

I write tech, life, and book review thingy. If you're reading this, most likely you either:

• found one of my blog from your browser's search result
• know my social media which has the link to this page

I hope you find this website by browsing something and my contents show up at the top of the search result because that means they have a good SEO rank

Latest blog

Haversine Distance Between Two Coordinates in JavaScript

A plain explanation of the haversine formula, with real numbers and a working JavaScript function

Sunday, 1 November 2026