lifelong journey with
understanding and presenting
by Frank Lin
In-place swap
In-place swap is just a logic trick used to swap a content of two distinct variables without any temporary storage variable.
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by Frank Lin
Testing dialog in shell scripts
Dialog is an utility for creating professional-looking dialog boxes within shell scripts, this article just follow the tutorial and present the examples of how and where it can be used.
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by Frank Lin
Bootstrap cards for showing colors
A few days ago, I built a website for showing traditional Chinese colors with bootstrap cards. Several issues I encountered during this process, just write them down for records.
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by Frank Lin
Query Yahoo finance historical data via python requests
It is said Yahoo finance closed the historical data api on May 18th 2017, but we can still download the data from the webpage. Here showing the way to download data using python request.
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by Frank Lin
Upgrade Ruby to the lastest version on Mac OSX with Homebrew
Recently when installing some gems, it popped out errors that telling the Ruby version is lower than required... I have to upgrade the shipped Ruby, version 2.0.0p648 (2015-12-16 revision 53162), on my machine. There are a few methods dealing with this, but I found the easiest way is using Homebrew.
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by Frank Lin
Build a personal Markdown notebook with Firebase Storage
Just make the Markdown notebook on the cloud. Build for personal use.
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by Frank Lin
Common sorting algorithms, understand and implemention in C
Understand the common sorting algorithms, just because recent take CS50 course.
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