magician11

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Ustice

Boolean Algebra in a nutshell for JS/TS programmers

There are a lot of strategies that you will hear about in the Javascript community for keeping your conditionals from becoming a tangled mess. This isn't like them. This is someting different. MATH! Boolean Algebra to be exact. I use it all the time to simplify complex conditionals. There are two things that you need to know: de Morgan's Theorem, and Karnaugh (pronounced CAR-no) Maps. (Don't worry, there is no test)

de Morgan's Theorem

De Morgan's Theorem is great distributing nots (!), and for when you want to convert an && to an ||, or back. This is it:

 !(A && B) = !A || !B

ryan-jr

Useful Things to Know and Where to Find Them

This is loosely based around MIT's idea of the missing CS Semester: https://missing.csail.mit.edu/ as well as the Stanford Problem Solving for the CS Technical Interview https://web.stanford.edu/class/cs9/ and here you'll find links to things that I've found useful in my job search over the last month or so.

Need to Know

General

cristianmiranda

Remaster Linux ISO:

• https://nixaid.com/linux-on-macbookpro/
• https://www.techrepublic.com/article/how-to-create-a-custom-ubuntu-iso-with-cubic/

Useful links:

• https://www.maketecheasier.com/install-dual-boot-ubuntu-mac/
• https://www.rodsbooks.com/refind/bootcoup.html#efibootmgr
• https://github.com/Dunedan/mbp-2016-linux
• Dunedan/mbp-2016-linux#6 (comment)

kannes

#!/bin/bash
# rename TMS tiles to the XYZ schema
# no quoting, since all files have simple numeric names
# do not run this anywhere else than INSIDE your tiles directory

# run it like this: find . -name "*.png" -exec ./tms2xyz.sh {} \;

filename=$1

tmp=${filename#*/}     # remove to first /