Rick Delpo articles - 33 total
Plain Javascript Refresher for those feeling left behind or not knowing where to start w/ Functions, Arrays, Loops, JSON & NoSQL
Here we will learn Plain Vanilla JS without using NodeJS or external libraries. We will start right...
Interactive stock market S&P 500 line chart using Bokeh, Python, JS, Pyscript and a movable angle finder for Trend Line Analysis
Is the stock market overvalued in 2024? Thanks to a Python library called Bokeh we can chart the...
Embedding Bokeh into HTML with Pyscript, a CSS resize handle & Custom JS callback passing results back to a div on our html page
Here we explore a deeper dive into Pyscript where all my code below is circa 2024 (the newest version...
Python in the Browser, Fetching JSON from an AWS S3 bucket into a Bokeh Line Chart, a Serverless solution
I needed some quick Python to replace broken code over in AWS Lambda. While looking at IDEs I...
quick Programming Joke
I wonder if this is out there in the land of programming jokes the only time you can have an...
13 reasons why Coding Tutorials can be Misleading resulting in Tutorial Hell
Ever get the feeling that searching for the appropriate tutorial can be quite challenging? Recently I...
Forgot where I saved my AWS S3 files so I wrote this File Watcher Program
It is a File Watcher that watches my local S3 repository for changes. When any file is changed my AWS...
Enabling AWS S3 to behave more like a Web Server
Cloudfront Functions (as of Nov 2021) can be used to mimic Apache htaccess behavior with Cloudfront...
AWS Gotchas Part 2 - corrections from part 1 plus new gotchas, A MUST Read (part of a series)
Last week I decided to host my website using S3 and Cloudfront and because I am not an expert I ran...
AWS Cloudfront DNS Migration Gotchas that no one tells you about
My overall observations, it takes a lot of digging to find these gotchas and many times AWS docs...
A Brief History of the Internet and HTTP Protocol
Javascript wins out in my opinion, find out how below Now and again we need reminders about our rich...
Inspecting the code of a stacked CSS Bar Chart data visualization (with no chart libraries)
In data analytics we use bar charts all the time. Here we construct a product sales stacked bar chart...
Array indexOf() method made simple for Data Analytics in charts and graphs..featuring Grouping, Summing and Rendering
Did you know that grouping is still unfinished in the Javascript API specification as of 2023? It's...
group by month and sum values for each month explained in plain english and done in plain javascript with example
Instead of using lodash and moment.js we can group and sum in plain javascript using the Date object,...
CRUD - 4 SQL Commands, their Javascript equivalents and MORE
CRUD is a popular acronym for SQL and relational databases as it describes the basic operations...
how to populate a Stacked Bar Chart in plain javascript
Populating a stacked bar chart using only plain javascript without chart libraries (chart.js) or...
Stacked Bar Chart using a JSON Data Source, Plain Vanilla Javascript, Plain CSS and no chart libraries
First, thank you Kevin at https://dev.to/kevtiq for getting us started on this bar chart. Here is...
Does anyone remember the old Mortbay Library used in Jetty?
I believe Mortbay was the first library used by Jetty back in the ninetys. Surprisingly you can still...
my pal JSON should be your Friend too
Just another boring article about JSON? Not really. First off, ur homework is to google JSON to see...
Removing Google Analytics and Replacing it with a cookie free Javascript Geo Tracking app
Running Google Analytics slows down site performance because adding any script to our html head tag...
To SQL or to NoSQL (with a simple NoSQL Example)
In this article I will cite reasons to use SQL and reasons not to do so, followed by a simple NoSQL...
Fun with 5 decades of WebDev - Where do u fit in on this timeline?
I am writing this because over decades it is now all a blur. It’s hard to believe that 5 decades...
Finally achieved Pure AWS Serverless Environment
This is a major milestone. I thought going to AWS would solve my problem but I was stuck with my AWS...
I think I am having an "aha" moment about React, please confirm
It was not long ago that I struggled terribly over React. Then I gave up on it because it seemed too...
React vs Plain JS
This piece is not meant to be a rant about React but rather just some observations. I hope that...
SEO, 4 Lessons Learned
It has been a long and complicated journey, a long slog so to speak. SEO is quite a process. Over the...
Why would I want to study the Java Servlet API
There’s a lot of gold in them thar hills and gold can symbolize the value of knowledge. The Java...
My AWS Lambda Adventure, 2021
This year I went Serverless using AWS Lambda and S3 as my data table. OMG, I ditched Java and JQuery...
Why Learn Java in 2021
Learn Java, why do we want to do this in 2021 by Rick Delpo ...
How I coded a Cookie Free Geo Tracking App
How I coded a Cookie Free Geo Tracking app - Steps and Challenges Mission: to avoid having to...