TILs - Fueling Curiosity, One Insight at a Time

In go - A final parameter of a function signature maybe prefixed with three dots (...) to be invoked with zero or more arguments, this is called variadic parameter. Also, an empty interface interface{} can hold values of any type. Combine these together and you can have a function parameter ready to accept n similar type arguments of any type func someFun(firstParam, a ...interface{})

collations will not work on any BSD-ish OS (incl. OSX) for an UTF8 encoding. You will never get the sorting right, unfortunately in PSQL. https://github.com/PostgresApp/PostgresApp/issues/216#issuecomment-58474023

use dumpleases command to list all the ip's leased by udhcpd.

how to use saturation and brightness property of colors to create different shades of a color for a UI. Also explains why some shades are dull vs some look vibrant -> https://medium.com/@erikdkennedy/color-in-ui-design-a-practical-framework-e18cacd97f9e. TLDR: more brightness and less saturation = vibrant. More saturation and less brightness = dull

how to use saturation and brightness property of colors to create different shades of a color for a UI. Also explains why some shades are dull vs some look vibrant -> https://medium.com/@erikdkennedy/color-in-ui-design-a-practical-framework-e18cacd97f9e. TLDR: more brightness and less saturation = vibrant. More saturation and less brightness = dull

convert mp4 to gif on linux (ubuntu 18.04). ffmpeg -i firefox.mp4 firfox.gif (ffmpeg 3.4.4 )

screen record via adb. adb shell screenrecord /sdcard/firefox.mp4 CTRL+C to exit after recording.

screen record via adb. 1. adb shell 2. screenrecord /sdcard/firefox.mp4 3. CTRL+C to exit after recording.

A nifty twitter card previewer for static pages https://cards-dev.twitter.com/validator

Nifty tool to convert videos into gifs https://github.com/lukechilds/gifgen