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Why 'This' in JavaScript
14.7.2018
While JavaScript is a fun and powerful language, it can be tricky and requires a proper understanding of its underlying principles to mitigate common errors.
In this post, we shall be introd
Anatomy of a malicious script: how a website can take over your browser
13.7.2018
By now, we all know that the major tech behemoths like Facebook or Google know everything about our lives, including how often we go to the bathroom (hence all the prostate medication ads that keep popping up, even on reputable news sites). After all, we’ve given them permission to do so,...
Unused
11.7.2018
I recently wrote Here’s the thing about "unused CSS" tools, where I tried to enumerate all the challenges any tool would have in finding truly "unused" CSS. The overarching idea is that CSS selectors match elements in the DOM, and those elements in the DOM come from all sorts of places: your static...
Code Challenge #12: JavaScript String Manipulation
10.7.2018
Last time on the Code Challenge #11 we solved problems in JavaScript using functions to manipulate objec
Vue Authentication And Route Handling Using Vue-router
6.7.2018
Vue is a progressive Javascript framework that makes building frontend applications easy. Coupled with vue-router, we can buil
Understanding The Underlying Processes of JavaScript’s Closures And Scope Chain
5.7.2018
When developers start exploring the JavaScript programming language, the concept of Scope and Closures can be expected to be a hurdle to their progress. The reason behind this behavior is the compl
15 Interesting JavaScript and CSS Libraries for July 2018
4.7.2018
A collection of our favorite resources for this July, packed with awesome free resources including some powerful CSS frameworks and JS tools
Getting Started with JavaScript Object
2.7.2018
An object is a type of data in JavaScript. It's the only value you can pass around as variables besides primitives. For this reason, objects are really important in JavaScript.
What are obj
Jak jsme přestavěli javascriptovou aplikaci, aby jí i roboti rozuměli
29.6.2018
Popíšeme vám, jak jsme náš projekt původně postavený na Angularu upravili, aby byl snadno dostupný i pro roboty
React Node Flow
27.6.2018
Flow, the static type checker used in many React projects, feels like a gift and a curse at times; a gift in that it identifies weaknesses in your code, and a curse that sometimes you feel like you’re needlessly adjusting your code to satisfy Flow. I’ve grown to appreciate Flow...
How to use Error Boundaries in React 16
26.6.2018
Have you seen these in your console?
Cannot read property ‘getHostNode’ of null ????
TypeError: Cannot re
What the heck is "Script error?"
22.6.2018
If you’ve done any work with the JavaScript onerror event before, you’ve probably come across the following:
"Script error."
“Script error” is what brows
JavaScript Functional Programming (Solution to Code Challenge #11)
22.6.2018
Tried the code challenge #11? In that, we delved into solving basic array problems using array methods s
Collective #426
21.6.2018
Teleport * Vibora * Voronoi Airports WebGL * Soccerpattern * Using JavaScript modules on the web * Understanding Redux
Collective #426 was written by Pedro Botelho and published on Codrops
Convert HTML to Markdown
21.6.2018
One of my biggest mistakes with this blog was not finding a WordPress plugin that would allow me to write my posts with markdown; to this day I still need to write posts in “Visual” mode and then manually convert the post to HTML for “Text” mode. One of these days I want...
Building a Fancy Countdown Timer with MomentumSlider.js
20.6.2018
Nowadays there are many Javascript libraries to make it easy the task of adding sliders to a website. Most have a host of features, to adapt the slider to the particular needs of each case. However
Debugging JavaScript in Google Chrome and Visual Studio Code
19.6.2018
Learning to debug is an essential skill for taking the next step as a developer. It's important to understand and leverage the vast array of tools that exist for a given languge. Unfortunately, deb
WDRL — Edition 232: The Cult of Complex, Why JavaScript Is Not Worse, Using Variable Fonts, Dark Mode CSS And Moral Implications.
15.6.2018
Hey,
We see complexity in every corner of a web project these days. We’ve read quite a bunch of articles about how complex a specific technology has become and we discuss this over and over again. Coming from a time where we uploaded our websites via FTP, had no git or similar, now living in...
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...