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def case_scram(str_):
    """ inpUT a StRINg, reTUrN a stRINg with rANDoM upPer or lOWER caSE. 
            This was built for testing case-insensitivity.
    """
    from random import choice

    if not isinstance(str_, str):
        return str_
    return "".join(choice((c.upper(), c.lower())) for c in str_)

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def lowercase_everything(obj):
    """ Recursively lowercase all elements - accepts list, str, tuple, dict, set """
    if isinstance(obj, dict):
        return {k.lower(): _lowercase(v) for k, v in obj.items()}
    elif (t := type(obj)) in (list, set, tuple):
        return t(_lowercase(o) for o in obj)
    elif isinstance(obj, str):
        return obj.lower()
    return obj

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/* Adds background gridlines for code blocks */
div.input_area {
  background: repeating-linear-gradient(
    to right,
    transparent,
    transparent 3px,
    rgba(180, 180, 40, 0.2) 3px,
    rgba(180, 180, 40, 0.2) 4px,
    transparent 4px,
    transparent calc(2.4em + 3px),

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morsecode_map = dict(a=".-",b="-...",c="-.-.",d="-..",e=".",f="..-.",g="--.",h="....",i="..",
                     j=".---",k="-.-",l=".-..",m="--",n="-.",o="---",p=".--.",q="--.-",r=".-.",
                     s="...",t="-",u="..-",v="...-",w=".--",x="-..-",y="-.--",z="--..")

def reverse_python_dict(dict_: dict) -> dict:
    return {dict_[k]:k for k in dict_}

def encode_morsecode(str_: str) -> str:

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ECMAScript 6 Cheat Sheet

Arrow functions

    x => x + 1                          // similar to function(x) {return x + 1;}
    (x, y) => x + y                     // similar to function(x, y) {return x + y;}
    x => {return x + 1}

Array destructuring

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prefix_letter = ['', 'A','B','C','D','E','F','G']
next_letter = ['A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z']

def excel_column_letters(columns_needed=None):
    result = []
    for prefix in prefix_letter:
        for letter in next_letter:
            result.append(prefix + letter)
    if columns_needed and isinstance(columns_needed, int):
        return result[:columns_needed]

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CSS + HTML only Accordion Element

Read the copy in the accordion sections for some info about how this was made.

A Pen by Ben Kremer on CodePen.

License.

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import random

people = ['alice', 'bob', 'carl', 'dave', 'asdf', 'sdfg', 'sdffg', 'erty', 'ertry']

people = [1,2,3,4,5,6,7,8,9]

def make_groups(people):
    result_groups = []
    current_group = []
    

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adrdash ()
{
    networksetup -connectpppoeservice "L2TP VPN";
    open smb://username:password@192.168.25.13/Share/;
    workon adr-dashboard;
    git status;
    git diff;
    read -r -p "Everything good? Continue? [y/N] " response;
    if [[ "$response" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
        echo 'Continuing\n';

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alias leetcode='cd ~/Dropbox/\ LEETCODE/ && jupyter notebook'
alias lc='leetcode'
alias leet='leetcode'
alias goopencv='deactivate || : && cd ~/Dropbox/\ CLASSES/LearnOpenCV_2021/ && source .venv/bin/activate && jupyter notebook'

#Energy Solution specific aliases
alias activate='source .venv/bin/activate'
alias act='activate'
alias deact='deactivate'