Christian Heilmann

JavaScript comes with an HTML tables API

A way to display time inside markdown files published as HTML pages on github

Derpify is a JavaScript method to randomly upper and lowercase letters

No matter how you build things for the web, in the end you ship HTML, so why not learn it?

Neither JavaScript nor CSS have a way to trim a string in the middle and insert a fill character like MacOS' Finder does. Here is an NPM method for it.

The web share API is a standard to provide buttons to share URLs or files

Just discovered https://httpstat.us which returns a HTTP response you request. You can request by...

const Marvel = ['Lights','Camera','Action']; const DC = Marvel.slice(1); Enter fullscreen...

I just created a massive dataset of all the AI generated metadata of the videos of the WeAreDeveloper...

Expert, Intermediate and Beginner for talks in conferences is confusing and counterproductive. How about classifying them instead?

Array.from(+{}+'') .map((_,$)=>$>=1?_.repeat(2):_.toLowerCase()) ...

Last year editing the talks of our conference took a few months. This year, the conversion bit was done in about 5 hours. How? By using the power of … PHP!

Twilio is sponsoring a CODE100 challenge and the main prize is a VIP ticket to the WeAreDevelopers World Congress

Using port forwarding, you can give your app a public URL.

A very old but cool one-liner in a newer language

I just finished another puzzle for the CODE100 competition and thought I make it Santa themed....

People try to block you from using browser developer tools to inspect their pages. And fail.

Pangrams are sentences that contain all letters of the alphabet. Here is a one liner to validate them. Can you make it even shorter?

Code100 is Europe's biggest coding competition. To see if you have what it takes, why not have a go at this puzzle?

Lossless Cut is a tool to cut out parts of a video without having to re-encode.

I am now in control of the Dev Digest newsletter of WeAreDevelopers

Here's what I get started with when I install a new macbook

Logrocket recorded a podcast with me talking about the need for good UX of AI solutions . It is...

A quick tutorial how to use FFMPEG on the command line to create videos with sound wave overlays

Using developer tools in the browser you can get all links of the current document into a spreadsheet with one line of code.

A web component to include GitHub repository links automatically by providing a link to it.

I just added a "share to mastodon" link to my blog at ChristianHeilmann.com. Ages ago I added a...

With the World Congress out of the way, it is time to focus on my new role as Director of Developer...

Using the CMD or Ctrl and I shortcut you can chat with AI using GitHub Copilot about a certain part of code. When you ask to modify the code, you get an inline code view.

Master public speaking with expert tips on storytelling, combating nerves, talk preparation, presentation dos & don'ts. Get ready to captivate your audience!