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Understanding the Almighty Reducer
13.6.2018
I was reently mentoring someone who had trouble with the .reduce() method in JavaScript. Namely, how you get from this:
const nums = [1, 2, 3]
let value = 0
for (let i = 0; i < nums.length; i++) {
value += nums[i]
}
...to this:
const nums = [1, 2, 3]
const value = nums.reduce((ac, next)...
A Quick Roundup of Recent React Chatter
12.6.2018
Like many, many others, I'm in the pool of leveling up my JavaScript skills and learning how to put React to use. That's why Brad Frost resonated with me when he posted My Struggle to Learn React."
As Brad does, he clearly outlines his struggles point-by-point:
I have invested enough time...
Creating a Bar Graph with CSS Grid
12.6.2018
If you’re looking for more manageable ways to create bar graphs, or in search of use cases to practice CSS Grid layout, I got you!
Before we begin working on the graph, I want to talk about coding the bars, when Grid is a good approach for graphs, and we’ll also cover some code choices you might...
Code Challenge #11: JavaScript Functional Programming
12.6.2018
Previously on the code challenge #10, we delved into lazy loading images for performance, you can check out the challenge post and solution.
This week on the code challenge, we'll be re-visi
Customize Payment Solutions with Enhanced API, Sample Code and SDKs
11.6.2018
As developers build sites for merchants, we know that payment processing capabilities are important. But it’s not always easy to set up a payment solution that is not only reliable and secure, but
Digging Into React Context
11.6.2018
You may have wondered lately what all the buzz is about Context and what it might mean for you and your React sites. Before Context, when the management of state gets complicated beyond the functionality of setState, you likely had to make use of a third party library. Thanks to recent updates...
8 Emmet Tips You Might Not Know
8.6.2018
Emmet (who remembers when it was called Zen Coding?) is a very useful code editor tool that brings snippets and supercharged shortcuts for generating HTML/markup and
Creating a VS Code Theme
8.6.2018
Everyone has special and perhaps, particular, tastes when it comes to their code editor. There are literally thousands of themes out there, and for good reason: a thing of beauty and enhancement to productivity for one can be a hindrance to another.
It’s been an item on my bucket list to create...
Manipulating Pixels Using Canvas
7.6.2018
Modern browsers support playing video via the <video> element. Most browsers also have access to webcams via the MediaDevices.getUserMedia() API. But even with those two things combined, we can’t really access and manipulate those pixels directly.
Fortunately, browsers have a Canvas...
Debug JavaScript in Production with Source Maps
5.6.2018
These days, the code you use to write your application isn’t usually the same code that’s deployed in production and interpreted by browsers. Perhaps you’re writing your source code in a language t
Combining the Powers of SEM and BIO for Improving CSS
4.6.2018
CSS is easy, some might argue, but that "easiness" can cause messy code. This is especially true through power of preprocessors like Sass or Less where, if you aren’t careful, your CSS can become harder to deal with instead of easier. Sass? Harder? This Gist shows a great example of Sass nesting...
HSL() / HSLa() is great for programmatic color control
1.6.2018
If you ever need to hand-manipulate a color in native CSS, HSL is pretty much the only way. HSL (the hsl() and hsla() functions in CSS) stands for hue, saturation, lightness, and optionally, alpha. We've talked about it before but we can break it down a little more and do some interesting things...
Customize payment solutions with our enhanced platform
31.5.2018
(This is a sponsored post.)
We’ve upped our game by using developers’ feedback to improve the Authorize.Net payment platform. Check out our new, streamlined API, better sample code and SDKs, and use them to provide your merchants with a secure, scalable payment solution. You’ll see that it’s...
Collective #420
31.5.2018
Sculpting Software Animation * Solving Life's Problems with CSS * Critters * Goat * code.xyz * Proppy * Deno * Prerender-loader
Collective #420 was written by Pedro Botelho and published on Codrops
Getting Started with Live Coding in Visual Studio Code w/ Live Share
30.5.2018
Live Share for Visual Studio Code is HOT OFF THE PRESS and publically available as of May 7th 2018! Wha
What does the ‘h’ stand for in Vue’s render method?
30.5.2018
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...
Lazy Load Animal Memes with Intersection Observer
29.5.2018
Last week we on the code challenge #7 we delved into lazy loading images for increased performance of web pages. Yet to take the challenge? You can do so
Developing a design environment
28.5.2018
Jules Forrest discusses some of the work that her team at Credit Karma has been up to when it comes to design systems. Jules writes:
...in most engineering organizations, you spend your whole first day setting up your development environment so you can actually ship code. It’s generally pretty...
Capture and Report JavaScript Errors with window.onerror
28.5.2018
onerror is a special browser event that fires whenever an uncaught
Build Native Modals Using the Dialog Element
24.5.2018
With release of HTML 5.2 comes the dialog element. The dialog element has been around for a while now but was an experimental technology.
Previously, if we wanted to build a mo