In Poland, there's an idiom that I've recently fallen in love with. Nie mój cyrk, nie moje małpy . . . literally, "not my circus, not my monkey;" figuratively, "not my problem."

Welcome to CSS Animation 101, and thank you for choosing this book.

I’m delighted you’ve chosen to learn CSS animation. This book is a light and fun introduction to the topic, and I hope you find it helpful. We’re going to learn about CSS transitions and animations. By the end you’ll have a good understanding of CSS animations as well as the tools to create and experiment with our own.

There will be both theory and practical examples. We’ll learn how to easily create your own working environment, and look at lots of examples of animation along the way.

NULL values are special. For instance, a comparison between two NULL values, or even a comparison between a NULL value and a non-value, will always be false. This is because NULL values aren’t real values as such, but rather “unknowns”.

Getting Started with Kubernetes sounds like quite a daunting feat. How do you get started with “an open-source system for automating deployment, scaling, and management of containerized applications”?

Summary

Clear event listeners on component destroy with $off source
Always use kebab-case for event names source
Avoid calling the same method in created and watch source
Always use :key in v-for loops source
Use $_ for mixins properties source
What’s used in mixin should be grabbed inside the mixin
Use PascalCase or kebab-case for single file components source
Use prefix for Base Component names source
Use PascalCase for component names in JS source
Prop names should always use camelCase during declaration, but kebab-case in templates source
Use Component options order from style guide source
Never use v-if on the same element as v-for source
Actions must always return. This avoids misunderstanding on when the action is done.
Use selectors inside actions and getters.

Especially
https://images.unsplash.com/photo-1506784926709-22f1ec395907?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=500&q=60

$ git commit --amend

• Accidentally committed all changes to the master branch
• Forgot to add a file to that last commit
• Added a wrong file in the repo

If you use NPM in your day-to-day workflow, I’m sure you will like these tips.

Wes Bos
Published on Aug 23, 2018
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This is a talk I did at Laracon on CSS Grid. If you want to learn more about CSS Grid, take my free course at https://CSSGrid.io. Slides for this talk available at https://wesbos.github.io/css-grid-talk - Enjoy!

James Hill, an award-winning ukulele player and songwriter from Canada, has been called a "ukulele wunderkind," and an artist who "gives the ukulele its dignity back without ever taking himself too seriously." The video above puts Hill's lighter side and wunderkind talents on full display.

Performing live for a crowd in California, Hill and his "imaginary band" perform an enchanting version of Michael Jackson's "Billie Jean." With just a uke, Hill plays the bass line, percussion, and piano parts. Put it all together, and you have a fascinating one-man ukulele performance. But wait until you see what he can do with a uke, chopsticks and comb...

Path::Tiny is a tiny abstraction around file paths that makes it very easy to manipulate them and perform common operations on them.

Recently I've started using Path::Tiny in preference to both the internal Perl operators for file manipulation and the other abstractions like File::Spec and Path::Class because it makes it really easy to handle common operations easily without making the kind of common mistakes that those other approaches often result in when you're coding quickly.

use B qw(perlstring);
say STDERR 'DEBUG: The next $childname is '. perlstring($childname)

This file contains a number of front-end interview questions that can be used when vetting potential candidates. It is by no means recommended to use every single question here on the same candidate (that would take hours). Choosing a few items from this list should help you vet the intended skills you require.

If you're in the position of needing to interview someone about their skill and knowledge about CSS, it can be a little hard to think of things to ask on-the-fly. I thought I'd think up and round up some ideas for reference.

This online math course develops the mathematics needed to formulate and analyze probability models for idealized situations drawn from everyday life. Topics include elementary set theory, techniques for systematic counting, axioms for probability, conditional probability, discrete random variables, infinite geometric series, and random walks. Applications to card games like bridge and poker, to gambling, to sports, to election results, and to inference in fields like history and genealogy, national security, and theology. The emphasis is on careful application of basic principles rather than on memorizing and using formulas.

Object-oriented programming in Perl is easy. Forget the heavy theory and the sesquipedalian jargon: classes in Perl are just regular packages, objects are just variables, methods are just subroutines. The syntax and semantics are a little different from regular Perl, but the basic building blocks are completely familiar.

In 22 lectures, Yale historian Paul Freedman takes you on a 700 year tour of medieval history. Moving from 284–1000 AD, this free online course covers "the conversion of Europe to Christianity, the fall of the Roman Empire, the rise of Islam and the Arabs, the 'Dark Ages,' Charlemagne and the Carolingian renaissance, and the Viking and Hungarian invasions." And let's not forget St. Augustine and the "Splendor of Byzantium."

You can stream all of the lectures above. Or also find them on YouTube, iTunes and this Yale website.

Glorified webpage
A hybrid app framework, such as Apache Cordova or Ionic, can also offer a native mobile feel, although it runs the app in a WebView.

Safety Insurance agency in Boston used Cordova to create a web-based app that is compatible with Android and iOS. Five years ago, hybrid apps suffered from performance issues because mobile devices didn't have the strongest processing power, so NativeScript or React Native would've been a better option then, said Keith Carangelo, web development manager at the agency.

"Now, the phones are fast enough to deal with all of the JavaScript," he said. "You don't tell that our app is web-based."

The ability to have different development environments for each mobile OS is a good option as well, Carangelo said.

"When you want to change things [in NativeScript or React Native], it takes so long to get to that environment and make sure your tooling is up to date," he said. "To make changes in two environments isn't necessarily the hardest thing."

Adopt the 1–3–5 method to create and manage your action list for the day
On any given day, assume that you can only accomplish one big thing, three medium things, and five small things, and narrow down your to-do list to those nine items.

This means that your daily schedule will feature:

1. One very important task;
2. Three tasks of medium importance
3. Five little things

Planning tomorrow today is a powerful habit that changes everyday.

It’s a system that can completely changes how you work:
Before the day ends, identify and write down the best actions (to-do) you need to take tomorrow that will help you get closer to your work goals.
Every morning, focus on completing your action list from yesterday before midday.

Bézier curves are, to me, one of the best examples of mathematical beauty. It’s fascinating what such a simple function on some points can achieve. Below is a step-by-step visualization of how a cubic Bézier curve can be constructed using simple rules on points and lines. Note each point’s position along its own line