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What does the ‘h’ stand for in Vue’s render method?


If you’ve been working with Vue for a while, you may have come across this way of rendering your app — this is the default in the latest version of the CLI, in main.js: new Vue({ render: h => h(App) }).$mount('#app') Or, if you’re using a render function, possibly to take advantage...

How to Delete Untracked Files in a Mercurial Repository


Working around Firefox at Mozilla means that you need to get acquainted with mercurial, the version control system that rivals git and svn.  Like any tool, hg (mercurial) can be difficult until you’re well versed with it.  And if you hg import a URL that doesn’t match up with...

Custom List Number Styling


How about a classic CSS trick! This isn't even so tricky anymore, since CSS has counter-increment and counter-reset and such that is perfect for this. I just wanted to make sure you knew how it works and had some easy-to-copy examples at the ready. Let's say all you wanna do is style the dang...

Responsive Knockout Text With Looping Video


Here’s an idea! Let’s make an an HTML <video> play inside the shape of some letters. Like "Knockout Text" except instead of an image behind, it’s video. A live demo will explain more clearly: See the Pen basic pen by Giulio Mainardi (@mgiulio) on CodePen. A key objective here is to develop...

Change Python Version


Python plays a major role at Mozilla; much of our website backends and tooling are written in the powerful language.  Want to build Firefox?  You’ll need to make sure you have the proper Python version, which I recently found out had been upgraded. Despite installing and verifying I had...

Set a Default Push Remote with git


During my early days of git usage, my config allowed me to simply type git push instead of git push {origin} {branch_name} which I need to now.  Up until recently I needed to type out the long version…(I know)…which was incredibly annoying because I like using detailed branch names....

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