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JavaScript Proxy
26.2.2019
I’ve always loved the flexibility of Objects and prototypes in JavaScript, but for a long time, I felt that a level of dynamism was lacking. JavaScript eventually added get and set methods for object properties, which was an awesome step, but there was still room for improvement....
The Ultimate Guide to JavaScript Algorithms: Pig Latin
26.2.2019
“Pig Latin is a constructed language game in which words in English are altered, usually by adding a fabricated suffix or by moving the initial consonant or consonant cluster of a
10 Interesting JavaScript and CSS Libraries for February 2019
21.2.2019
This month's web dev collection has it all! Cool CSS frameworks, powerful JS libraries, and a couple of fun projects thrown in for good measure
Social Cards as a Service
19.2.2019
I love the idea of programmatically generated images. That power is close at hand these days for us front-end developers, thanks to the concept of headless browsers. Take Puppeteer, the library for controlling headless Chrome. Generating images from URLs is their default use case:
const puppeteer...
The Ultimate Guide to JavaScript Algorithms: Combining Arrays Without Duplicates
19.2.2019
Combining Arrays Without Duplicates
When developing software, we often need to combine data efficiently and without repetition. This often comes up when manipulating listed data with the use Arrays
The Ultimate Guide to JavaScript Algorithms: Array Chunking
19.2.2019
This article marks the beginning of our array manipulation algorithms. In this article, we explore different techniques to chunk (split) an array into smaller units.
Array chunking is a tech
7 JavaScript Playgrounds to Use in 2019
18.2.2019
The importance of online code editing platforms cannot be overemphasized. As much as we love our local IDE's, one too many times we find ourselves needing to quickly share and or collaborate with
JavaScript Glossary: String concat()
17.2.2019
Basics
This method is used to join the calling string and the provided string arguments. It returns a new String object containing the calling string and the provided arguments . If no arg
JavaScript Glossary: Array unshift() Method
17.2.2019
Basics
The unshift array method appends a number of values to the start of a given array. It then returns the new length of the array. This method can take a number of argumen
The #StateOfCSS 2019 Survey
15.2.2019
You know about the State of JavaScript survey, where thousands upon thousands of developers were surveyed about all-things-JS, from frameworks to testing and many other things in between? Well, Sacha Greif has launched one focused entirely on CSS.
This is super timely given a lot of the content...
Front and Rear Camera Access with JavaScript's getUserMedia()
13.2.2019
It seems like not so long ago every browser had the Flash plugin to get access to the devices media hardware to capture audio and video, with the help of these plugins, developers were able to get
Avoiding those dang cannot read property of undefined errors
13.2.2019
Uncaught TypeError: Cannot read property 'foo' of undefined. The dreaded error we all hit at some point in JavaScript development. Could be an empty state from an API that returns differently than you expected. Could be something else. We don’t know because the error itself is so general...
A Funny Thing Happened on the Way to the JavaScript
12.2.2019
Around this time last year, I wrote an article about the JavaScript learning landscape. Within that article, you’ll find my grand plans to learn JavaScript — complete with a link to a CodePen Collection I started for tracking my progress, and it even got dozens of comments cheering me on.
Like most...
The Ultimate Guide to JavaScript Algorithms: Anagrams
12.2.2019
Hooray! This article marks the last string manipulation challenge in this section of this course. We've come a long way!
WDRL — Edition 257: Future of JavaScript, SVG Filters 101, and Humans not Users
8.2.2019
Hey,
this week I’ll go straight to the links I found, I simply didn’t came up with a good introduction piece this week which is probably due to the hectic week. Anyways, the articles in this edition are very useful, have new insights and great thoughts.
News
Chrome 72 for Android shipped...
The Ultimate Guide to JavaScript Algorithms: Search and Replace
8.2.2019
The "Search and Replace" functionality is very common within word processing applications used for creating notes, documents and things of that nature. In this challenge, we implem
JavaScript Glossary: Array .splice() Method
8.2.2019
Basics
The splice array method changes an existing array by removing, adding and/or replacing specified elements from it. The method mutates the array and returns an array of
JavaScript Glossary: Array .slice() Method
8.2.2019
Basics
The slice array method copies a given part of an array returning the selected part as an array. It doesn’t mutate the given array rather, it returns a new array
JavaScript Glossary: Array .shift() Method
8.2.2019
Basics
This method takes out the first element from an array and returns it. The shift method mutates the array during this process, reducing its length
JavaScript Glossary: Array .reverse() Method
8.2.2019
Basics
This method changes the position of elements within the array. The first element goes to the last position and the last element goes to the first position. The method returns the re