rauschma

Cheat sheet: JavaScript Array methods

Deriving a new Array from an existing Array:

['■','●','▲'].slice(1, 3)          ⟼ ['●','▲']
['■','●','■'].filter(x => x==='■') ⟼ ['■','■']
    ['▲','●'].map(x => x+x)        ⟼ ['▲▲','●●']
    ['▲','●'].flatMap(x => [x,x])  ⟼ ['▲','▲','●','●']

ericclemmons

Using <details> in GitHub

Suppose you're opening an issue and there's a lot noisey logs that may be useful.

Rather than wrecking readability, wrap it in a <details> tag!

<details>
 Summary Goes Here

TravelingTechGuy

#!/bin/bash

# Locate the history file in your profile, and copy it to the same folder as this script.
# On Mac: ~/Library/Application\ Support/Google/Chrome/Default/History
# On Windows: C:\Users\YOUR USER NAME\AppData\Local\Google\Chrome\User Data\Default\History

sqlite3 History <<!
.headers on
.mode csv
.output out.csv

pocotan001

• 🎨 when improving the format/structure of the code
• 🚀 when improving performance
• ✏️ when writing docs
• 💡 new idea
• 🚧 work in progress
• ➕ when adding feature
• ➖ when removing feature
• 🔈 when adding logging
• 🔇 when reducing logging
• 🐛 when fixing a bug

ttscoff

alias rmdbc="find . -name *\ \(*conflicted* -exec rm {} \;" # recursively delete Dropbox conflicted files
# and/or (smart idea from Gordon Fontenot)
alias rmdbcsafe="find . -name *\ \(*conflicted* -exec mv {} ~/DropboxConflicts/ \;" # recursively move Dropbox conflicted files to temp folder
# or... via TJ Luoma
alias rmdbctrash="find . -name *\ \(*conflicted* -exec mv -v {} ~/.Trash/ \;" # recursively move Dropbox conflicted files to Trash

# More advanced idea combining ideas from @modernscientist and @GFontenot would be
# Hazel or launchd script to move conflicted files to temp folder once a day, and Hazel or launchd script to delete files older than [x]
# Or schedule TJ's idea of moving to Trash and skipping intermediate folder while still maintaining the ability to review
# hmmmm...

ryansully

#!/bin/sh

# script for optimizing images in a directory (recursive)
# pngcrush & jpegtran settings from:
# http://developer.yahoo.com/performance/rules.html#opt_images

# pngcrush
for png in `find $1 -iname "*.png"`; do
    echo "crushing $png ..."
    pngcrush -rem alla -reduce -brute "$png" temp.png