I thought I knew all the ways to call functions without parentheses: alert`1337` throw onerror=alert,1337 Function`x${'alert\x281337\x29'}x``` 'alert\x281337\x29'instanceof{[Symbol['hasInstance']]:eva... (more…)

Let’s understand this is real world example . Consider we have an div which will move from left to right Once all the event is registered it will print animation status message , whenever the status… (more…)

Samurais had something called bushidō, way of the warrior, code of conduct they had to follow. In similar manner you have to follow certain opt-dō if you want to optimize your application. I have tried to sketch such a path in my nodecamp.eu talk "Underst... (more…)

Quick, easy to understand topo on how Javascript works in a Rails 6 application — Webpacker, Yarn and Sprockets... (more…)

Continuing our quest for better Lighthouse scores, more reader privacy, and less JavaScript we attacked the next biggest culprit 👉 Twitter. (more…)