Kilian Valkhof

Includes, contains or has. Finding things in iterables (lists) in JavaScript

When writing JavaScript, very frequently I need to check if a given thing exists in a list of things. Every single time I need to look up the function that does that for the sort of list I’m working with.

You see, there are three possible options: includes(), contains() and has() and I mix them up all the time. So I’m writing this for my own reference.

Re-Creating the Porky Pig Animation from Looney Tunes in CSS

Last December I wrote an article in Dutch for the Fronteers blog on a fun bit of CSS I wrote that use 3D transforms to create a cool looking effect: Porky Pig coming out of those red rings announcing the end of a Looney Tunes cartoon. At the time, I was creating a resource of 3D transforms examples so it was on my mind, and I decided to see if I could replicate that ‘coming out of the circles’ effect. Turns out I could!

You want overflow: auto, not overflow: scroll

Every now and then a web developer using a Mac discovers that their beautiful design is littered with scroll bars on other platforms. Either because someone points it out to them or because they attach a mouse to their laptop, both of which make the scroll bars appear.

I want my own media queries in browsers

We’re on the verge of a whole lot of new CSS media queries becoming available. But if you’re a developer that wants to get a head start and try them out, you’re out of luck. Browsers are prototyping them one by one before making them available and we as developers have to wait.