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Christian Heilmann profile picture

Christian Heilmann

Open Web guy at Microsoft and long-time JavaScript user

Location Berlin, Germany Joined Joined on  Personal website https://christianheilmann.com github website twitter website

Work

Principal Program Manager at Microsoft

Redirecting GitHub Pages
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Redirecting GitHub Pages

#github #markdown #jekyll #redirection
Reactions 9 Comments 2
2 min read

Recent comments

Debugging JavaScript, DOM, CSS and accessing the browser console without leaving Visual Studio Code

Thank you, we're working on the multiple screen size idea. I ...

Sharing data between CSS and JavaScript using custom properties

Also useful for scroll position, document dimensions, cursor ...

Checkboxes can be excellent buttons

Correct. This also works for radio buttons, which is even bet...

I am Chris Heilmann, Principal Program Manager for the Microsoft Edge developer tools - AMA!

Well, JavaScript is both server side and client side. Persona...

I am Chris Heilmann, Principal Program Manager for the Microsoft Edge developer tools - AMA!

As a web developer since 1996: wholeheartedly agree :)

I am Chris Heilmann, Principal Program Manager for the Microsoft Edge developer tools - AMA!

For the web space, JavaScript, without a question. It runs ev...

I am Chris Heilmann, Principal Program Manager for the Microsoft Edge developer tools - AMA!

Hey Saurabh, sorry about that experience. This is nothing I c...

I am Chris Heilmann, Principal Program Manager for the Microsoft Edge developer tools - AMA!

Apparition - I want to see my team in person again (I'm in Be...

View all 32 comments
Using console.log() debugging in Visual Studio Code
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Using console.log() debugging in Visual Studio Code

#console #javascript #debugging #visualstudiocode
Reactions 4 Comments
3 min read
Debugging JavaScript, DOM, CSS and accessing the browser console without leaving Visual Studio Code
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Debugging JavaScript, DOM, CSS and accessing the browser console without leaving Visual Studio Code

#visualstudiocode #debugging #browsers
Reactions 21 Comments 3
2 min read
Quick VS Code tip: Automatically add image width and height to images
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Quick VS Code tip: Automatically add image width and height to images

#vscode #images #performance
Comments
1 min read
Save Twitter GIFs as MP4 without any add-on or service
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Save Twitter GIFs as MP4 without any add-on or service

#twitter #hack #trick #devtools
Reactions 7 Comments
1 min read
Quick Visual Studio Code tip: Expand/Shrink selection!
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Quick Visual Studio Code tip: Expand/Shrink selection!

#development #productivity #code
Reactions 4 Comments
1 min read
Batch cropping of screenshots on MacOS
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Batch cropping of screenshots on MacOS

#images #cropping
Reactions 17 Comments 2
2 min read
Conditional animations with CSS properties
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Conditional animations with CSS properties

#a11y #css #customproperties
Reactions 49 Comments
2 min read
How to debug web projects using the browser developer tools inside Visual Studio code
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How to debug web projects using the browser developer tools inside Visual Studio code

#vscode #webdev #debugging
Reactions 6 Comments
1 min read
Syncing visual CSS changes in browser tools with source code using Workspaces
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Syncing visual CSS changes in browser tools with source code using Workspaces

#developertools #css
Reactions 2 Comments
2 min read
Get all headings and their target URLs from a Markdown generated page
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Get all headings and their target URLs from a Markdown generated page

#snippet #javascript #markdown
Reactions 4 Comments
1 min read
Using position: sticky to create persistent headers in long texts
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Using position: sticky to create persistent headers in long texts

#css #sticky #design
Reactions 3 Comments
1 min read
Sharing data between CSS and JavaScript using custom properties
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Sharing data between CSS and JavaScript using custom properties

#css #javascript #interaction
Reactions 40 Comments 3
3 min read
Seven ways to test for accessibility of your web site with browser Developer Tools
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Seven ways to test for accessibility of your web site with browser Developer Tools

#a11y #browsers #testing
Reactions 13 Comments
5 min read
Quick tip: How to capture and replace newlines in liquid for Jekyll/GitHub Pages
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Quick tip: How to capture and replace newlines in liquid for Jekyll/GitHub Pages

#jekyll #github #markdown
Reactions 1 Comments
2 min read
Quick tutorial CSS tip: How to show source code the easy way
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Quick tutorial CSS tip: How to show source code the easy way

#css #tricks #tutorials
Reactions 50 Comments 7
3 min read
Quick hack: How to make the new CSS Overview feature of Chromium DevTools shareable
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Quick hack: How to make the new CSS Overview feature of Chromium DevTools shareable

#developertools #browsers #edge #chrome
Reactions 5 Comments
3 min read
How to persistently change third party web sites with browser developer tools
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How to persistently change third party web sites with browser developer tools

#browser #developertools #tricks #webdev
Reactions 14 Comments
5 min read
Back to Basics: Event Delegation
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Back to Basics: Event Delegation

#javascript #webdev #tricks
Reactions 5 Comments
3 min read
Writing a dog picture browser in ~200 lines of code
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Writing a dog picture browser in ~200 lines of code

#javascript #css #webdev #hack
Reactions 17 Comments 1
7 min read
How I failed to write a perfect dice throw simulator and how that is totally OK
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How I failed to write a perfect dice throw simulator and how that is totally OK

#development #javascript #fun
Reactions 3 Comments
2 min read
Microsoft Create: Serverless - Developer Hacks and Tools we wished we knew sooner
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Microsoft Create: Serverless - Developer Hacks and Tools we wished we knew sooner

#mscreate #productivity #development
Reactions 49 Comments
3 min read
Checkboxes can be excellent buttons
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Checkboxes can be excellent buttons

#javascript #accessibiliy #forms #checkboxes
Reactions 28 Comments 3
3 min read
I am Chris Heilmann, Principal Program Manager for the Microsoft Edge developer tools - AMA!
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I am Chris Heilmann, Principal Program Manager for the Microsoft Edge developer tools - AMA!

#ama #microsoftedge #javascript #mscreate
Reactions 89 Comments 63
3 min read
Progressively Enhancing Radio Groups
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Progressively Enhancing Radio Groups

#a11y #forms #css #svg
Reactions 6 Comments 1
12 min read
Quick solution: getting the mouse position on an element regardless of positioning
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Quick solution: getting the mouse position on an element regardless of positioning

#mouseposition #dom #javascript
Reactions 8 Comments
1 min read
Fun with browsers: how to get an image into the current page
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Fun with browsers: how to get an image into the current page

#webstandards #webdev #apis
Reactions 10 Comments 1
2 min read
Quick developer tools tip: simulating dark/light colour mode
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Quick developer tools tip: simulating dark/light colour mode

#development #browsertools #darkmode #lightmode
Reactions 7 Comments
2 min read
Contributor performance matters
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Contributor performance matters

#opensource #simplicity #diversity
Reactions 4 Comments
3 min read
The seven sins of meetings with remote participants
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The seven sins of meetings with remote participants

#meetings #productivity #inclusion
Reactions 9 Comments
2 min read
Develop, Debug, Learn? Time to re-think our tooling
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Develop, Debug, Learn? Time to re-think our tooling

#tooling #development #automation #chromium
Reactions 35 Comments
17 min read
A tale of a typo - can we talk about making things easier for contributors?
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A tale of a typo - can we talk about making things easier for contributors?

#development #opensource #frustruations
Reactions 7 Comments 2
3 min read
Fun with JavaScript and CSS - random dots
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Fun with JavaScript and CSS - random dots

#javascript #css #fun #creativecoding
Reactions 79 Comments 4
5 min read
Wanted: disabled developers to help improve tooling accessibilty
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Wanted: disabled developers to help improve tooling accessibilty

#accessbility #developertools
Reactions 6 Comments
3 min read
Web development before standards and open browsers
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Web development before standards and open browsers

#webdev #standards #browsers #javascript
Reactions 36 Comments 3
6 min read
Terseness tension
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Terseness tension

#coding #optimization #performance #demos
Reactions 17 Comments 1
4 min read
A simple bookmarklet to tweet the current page
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A simple bookmarklet to tweet the current page

#bookmarklet #twitter #webdev
Reactions 39 Comments 6
2 min read
Quick tip: using scrollIntoView() to show added elements to a container with overflow
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Quick tip: using scrollIntoView() to show added elements to a container with overflow

#dom #javascript #api #tops
Reactions 7 Comments
2 min read
Simple edit-in-place by changing the type of an input
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Simple edit-in-place by changing the type of an input

#editinplace #javascript #forms
Reactions 18 Comments 3
1 min read
Using CSS Custom attributes generated by JavaScript as a handover mechanism
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Using CSS Custom attributes generated by JavaScript as a handover mechanism

#css #javascript #interaction
Reactions 8 Comments 3
4 min read
A worrying change in Open Source perception
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A worrying change in Open Source perception

#opensource #community #empathy #codequality
Reactions 80 Comments 8
7 min read
Some things you can do to make it easier for people in other time zones to work with you
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Some things you can do to make it easier for people in other time zones to work with you

#remotework #meetings #teamwork #timedifference
Reactions 6 Comments
2 min read
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