Ionică Bizău

Programmer, Pianist & Organist, Jesus follower

The Amazing Tangram Square

I was 7 years old when I first found out what the Tangram Square is. I saw it in a Maths book and I quickly started to have fun with it.💫

The Tangram is a Chinese geometrical puzzle consisting of a square cut into seven pieces:

  • 2 large right triangles
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How to write a web scraper in Node.js

Sometimes we need to collect information from different web pages automagically. Obviously, a human is not needed for that. A smart script can do the job pretty good, especially if it's something repetitive. 💫


When there is no web based API to share the data with our app, and we still want to extract some data from that website, we have to fallback to scraping. 💥

This means:

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Pi Day, Raspberry Pi and Command Line

Everyone knows (or should know) what the Pi number is. Basically, its value is defined by the division of a circle circumference to its diameter. That's the Pi number! The nice thing about it is its irrational nature. That means it has a lot an infinity of decimals.

Usually, Pi is approximated as 3.14. And today is 14th of March! So, happy Pi day! :)

I have a Raspberry Pi computer around, and I was thinking to use two of my libraries to create something nice: displaying the Raspberry Pi's logo and the Pi number in the command line: it's funny how it basically stands for Raspberry Pi (the raspberry image and the pi number). I wanted one more thing: using the pi number decimals in the output characters. Here's the result (see below how I did it):

How I did it

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How I ported Memory Blocks to modern web

Playing computer games is a lot of fun. Playing games improving brain function and performance is even better. The first computer game I ever played was one of these. ⚡️

It happened when I was 6-year-old. I visited a friend in the neighboring village. There were not so many computers in those days but my friend had one. He asked me to play a computer game he thought I would enjoy. And I did! It was my favorite computer game at the time (back in 2001).

The game I played was Memory Blocks, which is part of the Symantec Game Pack, created by Charles Timmerman—founder of Funster and author of over 90 puzzle books.

Since then I did a lot of things. One of them is that I became a web developer. So, I thought: it should be interesting to bring this Windows game back to life and everyone will be able to play it in their browsers (on any platform). Many people love oldies. Not long time ago I created a COBOL bridge for Node.js and the feedback was amazing.

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How to convert JSON to Markdown using json2md

I love and use both JSON and Markdown in my projects. Each npm package requires a package.json file which is obviously written in JSON format. Also, good projects have good documentation. My favorite language for writing docs is Markdown.


But I don't really write Markdown files. I do write docs, but they are stored in the code (JSDoc comments). I automated the process of generating Markdown docs using Blah. However, sometimes these documentation templates are not enough.

That's why I created json2md which is the bridge between JSON and Markdown languages. Integrating this package with my Blah templates, I can write custom things in the final documentation result using JSON inputs in my package.json (or another JSON file).

How to use

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7 of My Favorite Bible Passages

Bible is full of beautiful verses that encourage us and light our path in this world. While they all are important, I have some favorite passages that I like in special. Here are seven of them. 💫


John 3.16

For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life.

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Increasing productivity using Blah 2.0.0

Few months ago I was introducing Blah–one of nicest tools I ever used in module/project development. It helped me a lot. Literally. More than 80% of my projects documentation was generated by this tool.

Recently I started building some new features, working on the 2.0.0 milestone of this project and finally, the 2.0.0 branch was merged. 97 commits, 34 files changed, and 1.659 lines changed (1,197 additions, 462 deletions). Cool, right? Let's see what's hiding behind these numbers.

Blah Help

The new big feature is templates. There are three levels of Blah templates:

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Reserving packages on NPM

As of 20th of August, 2015, I discontinued this project:

⚠️ This project is discontinued and deprecated. By reserving NPM packages without publishing code, you are violating the NPM terms. For more information please refer to Acceptable Package Content

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Visualize your GitHub projects languages

I created a tiny tool for visualizing the programming languages collected from someone's GitHub repositories. It is available here, being hosted on GitHub pages.

Below, you can see an embeded chart with my programming languages:

We get the data via the GitHub API and then render the language stats using drawPieChart.

It also has an API for embeding (you already saw I embeded it in this article). You can embed it via an <iframe> element which looks like this (replace username with your username):

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