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Showing posts from 2018

Memory Recall: An Interview Thought

At least a few hundred JavaScript algorithm challenges after taking Harvard's CS50 course, I realized that I use (my brain uses) a "trie" type of knowledge retrieval approach, as compared to someone who can do more of a "dictionary" type of memory lookup. That is, my recall works better when I'm creating and analyzing code (e.g., surrounded by context).

For instance, if I come across a need for the "spread operator", I may need to look up a quick example for syntax reference, but I know I can use it and I will put it to use. Or I may devise another method that may work out better long term, considering the potential future expansion of that particular code. Or I may just prefer another approach (e.g., I prefer `slice()` and `concat()` for copying arrays (but would always go with whatever coding guide I'm working with, if any)).

Anecdotal disclaimer: Using unfamiliar functionality can take me a half dozen trial and error attempts, but I always …

Front-End Development Certifications x2

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Two more freeCodeCamp certifications completed, with one more at 70%.
Responsive Web DesignJavaScript Algorithms and Data Structures And although I'm only at 37% with Harvard's CS50W: Web Programming with Python and JavaScript, and 23% with Google's 'Master web development' courses (via Udemy), I'm considering running through another Vue series (via Laracasts), being the last one I went through was in Jan-Mar 2017.

UPDATE: On the other hand, perhaps not... the training video shows they're using 2.1.3, and although I could look around for something in the 2.5.x range, I believe it would be prudent to instead find more professional and in-depth courses for the latest React.

All current and previous training progress (such as my 11 completed courses) can be found on my Training Progress SPA (now a PWA! (...works offline: can't get updates (due to there being no network), but it works offline! :D )).

https://keithdc.com


Pros and Cons of Visual Studio Code vs. Sublime Text 3

Pros and Cons of Visual Studio Code vs. Sublime Text 3Below are personal observations with the VS Code editor as compared to the Sublime Text editor. VS Code: A lightweight IDE Visual Studio Code (VS Code) Sublime Text: A customizable code editor Sublime Text 3.0 (ST3) VS Code: Pro and ConsPro: TypeScript insights are excellent (ST3 insights don't work well at all). Pro: Referential integrity. Con: Bracket-matching cursor sucks, no matter which option I choose. The small thick underscore gave me the least headache, but eventually had to turn them off completely. Con: Pg-Up and Pg-Down scroll the cursor, not the page (inconsistent with most other apps). Con: Insert (overwrite) doesn't work. Con: Can never remember the recent files I actually need; even when just closed. Con: File menu isn't native (no keyboard left/right menu switching). ResultsUse VS Code for my React + TypeScript projects; for its TypeScript insights. Use ST3 for everything else due to its lightweightednes…

Does your butter expire next week?

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Expired To Be is a quick and convenient way to set and be reminded of expiration dates(free and open source).


New Features available in version 2:
Sort your list by expiration item name, expiration date, or 'days left' (until expiration notification).Set a 'backup item date'.
Easily swap out expired items with a replacement date using the convenient blue check mark icon on your item's date field.More informative messaging. Additionally, you can easily export and import your expiration lists for backup and portability.

Expired To Be is free and can be run as:
A Chrome browser extension available from the Chrome web store at: https://chrome.google.com/webstore/detail/kamjiblbgmiobifooelpmlkojmadmcanA standalone web app (SPA) available at: https://KDCinfo.github.io/expired-to-be/
Expired To Be is open source on GitHub: https://github.com/KDCinfo/expired-to-be

TypeError: Undefined: Redux 4

Redux 4 > createStore > compose The ErrorTypeError: Cannot read property 'apply' of undefined [node_modules/redux/es/redux.js:523] The Problem and Solution If you've gone through a tutorial in which they suggest adding the Redux Dev Tools in your store.js like this:

window.__REDUX_DEVTOOLS_EXTENSION__ && window.__REDUX_DEVTOOLS_EXTENSION__() But they're using it inside of a compose(), you could receive a Type Error for an undefined when the extension is not enabled (or present). The correct way to implement the Redux Dev Tools within a compose is as follows:

window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__ || compose I learned this the hard way, and was eventually brought rescue from GitHub user [zalmoxisus]. zalmoxisus also references the docs for this: [1.2 Advanced store setup (middleware and enhancers)] Code Extract from [store.js] compose( applyMiddleware(...middleware), window.__REDUX_DEVTOOLS_EXTENSION__ &…

Tech Schools: Full-Stack JavaScript

Would anyone know of any good 6-12 month tech schools in the US that offer job placement? Looking to specialize in Full-Stack JavaScript.

Expired To Be: Now Available Most Anywhere

As a gift to the month of April, Expired To Be is now accessible from any browser! :)

What is... 'Expired To Be' is an app where you can set reminders for 'things that expire'. Initially only available from the Chrome web store as a Chrome browser extension, it can now be accessed from any browser. The new SPA version of the app is hosted on GitHub Pages (and built via Travis CI).

Both apps share the same source code, which is all open source on GitHub.

A Special Treat
The one and only; SPA Integration Diagram: This diagram details the layout and integration between my custom React 'Alarms API' and the Chrome extension core files.

SPA Alarm Notifications
The Expired To Be 'SPA version' provides a few options for 'expiration notifications' (although unfortunately some platforms still don't support web-based notifications; in which case it'll fall back to using the default, which is `alert()`). Modals are the other option, but are more passiv…

Expired To Be 1.4 Released

'Expired To Be' is a Chrome extension available on the Chrome Web Store.

This Chrome browser extension allows you to enter expiration dates with 'alarms' (measured primarily in days) for any items you'd like to be reminded of.

New features added in X2B 1.4:
  - You can export your existing expiration items.

  - You can import over 500 expiration items (the app will automatically walk through saving each item from the list you provide).

  - I've also completed refactoring to enable a SPA version of the app that will work in any browser (no extension required). However, it will take a little time to implement a local 'alarm' interface, and to implement an optional (and opt-in) Web/Desktop Notifications system. Stay tuned for X2B 2.0!

How it Works: The Expired To Be Chrome extension will provide notification reminders at a time of your choosing (which is the actual expiration date, minus your 'lead time'). The primary notification for when an item ex…

Expired To Be: A Chrome Browser Extension

Expired To Be A Chrome Browser Extension Set and be reminded of expiration dates. 'Expired To Be' is a Chrome extension available on the Chrome Web Store.

Get notified of expiring items for things you don't think about too often; like butter, medicine, or the supplies under your sink.

As a developer, I spend most of my life in Chrome, which is why I decided to create this app as a browser extension. This was my 2nd Chrome Extension (the first being "Character Counts", which I wrote as my Final Project in Harvard's CS50 course).

Although I built the extension primarily for personal use, I also wrote it for continued JavaScript practice: It is open source on GitHub, and I'm completely open to feedback as well as PRs. And I'm especially open to looking into any bugs.

Development time took just over 2 weeks. This was one of my more tedious projects I've worked on in awhile (migrations with Laravel, Nov 2016, actually), but then I was a tad sick throu…

Character Counts V2

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The Chrome Web Extension "Character Counts" has been updated.

Current Features:

1. Count the number of selected characters on a page.
2. Convert an ASCII(char) string* between normal ASCII, ASCII (Int), and Binary.

* A string is represented by characters, words, and/or entire sentences.

New Feature:

1. Choose if your conversion input (source) string is ASCII(char) (default), ASCII(int), or Binary. The 'Convert' link will then cycle through the 3 conversions (although really 2; one converted output will always be the same as one source input).

  For Example:
  - ASCII(char) = ABC
  - ASCII(int) = 65 66 67
  - Binary = 01000001 01000010 01000011

Character Counts is available for free in the Chrome Web Store.

Character Counts is also Open Source on GitHub.


I··C··D··O··T··S (––and––lines––)

I··C··D··O··T··S··: A Web App Gametl;dr - take me to the game already!
ICDots is a board game for 2-7 players who will take turns selecting lines to form boxes. Scoring is 1 point per box pinned. Line colors have no distinction other than one is horizontal and one is vertical, and the alternating colors felt visually appealing. Game ReferenceWikipedia (Game: Dots and Boxes): https://en.wikipedia.org/wiki/Dots_and_Boxes
The Game:
Board is between 2 and 7 (represented as 1 row of boxes).Number of players is between 2 and [Board] size.Players take turns.If a player pins a box, they go again. Application URLs- React Version (working demo)- GitHub Pages- Process Flowchart- My JavaScript Prototypal Inheritance Version Technology HistoryInspired by a Codewars kata, the original kata solution was written with just JavaScript.In making the game interactive, the first version of ICDots was written with JavaScript Prototypal Inheritance (e.g., let myGame = new Game() and Game.pro…

Dances with Vars

Dances with Vars:

Spans... Spans... Your name is Spans? Spans Div... Spans with Divs... Your name is "Spans with Divs"!?!

>Testing Dark Humor:

```describe(‘psychotic’, () => { it(‘puts’, () => { basket: “lotion” } expect(null).toEqual(“Precious”)) }```
I had originally posted this on Google+, but thought it fitting for my blog as well. I would also share on Twitter, but you can't format Twitter messages, so it'd lose it's coded `unit testing` humor hook.

Foundation 6 Install - 2018-01

[2018-01-07 / 08 - Sun / Mon]
Setting up a new VirtualBox VM with Ubuntu 16.04.3 (guest) on a Windows 10 MSI laptop (host/parent).
I was recently reintroduced with Foundation 6, and I decided it would be a good opportunity for a little redesign of my portfolio. This guide became a byproduct of my setup process.
Note: In this guide, 'ubuntuuser' will be the local Ubuntu username you choose when creating your VirtualBox Ubuntu VM (bullet item #2). Also, I tried to put all the important commands to run in bold - hopefully this translates when I publish from Evernote to Blogger. :)
VM with Foundation 6 from Scratch:
     - Downloaded Ubuntu Server Latest (16.04.3) ISO http://www.ubuntu.com/download/server
     - Created a new VirtualBox VM (named "F18").           Apply the ISO, run through the Ubuntu installation (I accept near, if not all, defaults).           LAMP server | Mail server | Samba file server | OpenSSH server | Basic Ubuntu server                (names and passes ar…