At PayPal we write a lot of javascript that ends up running on other websites and other domains. The prime example of this is checkout.js… (more…)

ES2021 edition of “JavaScript for impatient programmers” - impatient-js-es2021.md... (more…)

I discovered Coinhive 3 days ago on HN, and decided to give it a try on one of my smaller websites, as an experiment. (more…)

How to build a realtime chat app for web and mobile web in 20 lines of code. (more…)

Bubble sort algorithm doesn’t track the current state of the array. Even if it gets the fully sorted array as an input, the runtime will remain of the same O(n^2^) complexity. (more…)