kylelambert101

# Aggregate keys of all objects in an array
jsonArrayData | jq '[.[] | keys] | flatten | unique'

# Map array to reduced objects and sort by a field
# Assumes array of {id, name, items:[]}
jsonArrayData | jq '[.[] | {id, name, itemCount:.items | length}] | sort_by(.itemCount)'

# Filter an array by matching property
jsonArrayData | jq '. [] | select(.id == "SomeId")'

kylelambert101

import * as React from 'react';

export interface SimpleContextType {
    userName: string | undefined;
    setUserName: (userName: string | undefined) => void;
}

export const SimpleContext = React.createContext<SimpleContextType>({ userName: undefined, setUserName: () => undefined });

export const SimpleContextProvider = ({ children }: { children: React.ReactNode }): React.ReactElement => {

kylelambert101

// From https://reactjs.org/docs/hooks-faq.html#how-to-get-the-previous-props-or-state
function Counter() {
  const [count, setCount] = useState(0);

  const prevCountRef = useRef();
  useEffect(() => {
    prevCountRef.current = count;
  });
  const prevCount = prevCountRef.current;

kylelambert101

# To be placed in ~/.config/git/git-prompt.sh
# Will be picked up by git bash /etc/profile.d/git-prompt.sh as a custom configuration
PS1='\[\033]0;$TITLEPREFIX:$PWD\007\]' # set window title
PS1="$PS1"'\n'                 # new line
PS1="$PS1"'\[\033[34m\]'       # change to blue
PS1="$PS1"'[`date +%F_%T`] '   # date
PS1="$PS1"'\[\033[32m\]'       # change to green
PS1="$PS1"'\u'                 # user
PS1="$PS1"'\[\033[95m\]'       # change to purple
PS1="$PS1"'@\h '               # @host<space>

kylelambert101

// Source: https://www.benmvp.com/blog/filtering-undefined-elements-from-array-typescript/

/* 
 * Let's say I have a list of MyObjects and I want to filter down to all of the contained MySubProperties.
 * 
 * I need to filter out the objects with undefined property values since they cannot have a subproperty, and
 * I need TypeScript to understand that the result type of that filter is MyProperty[] rather than 
 * (MyProperty | undefined)[] - that way, ts won't flag the access of p.subProperty for possibly undefined values. 
 */

kylelambert101

# From https://medium.com/@optalgo/use-dropbox-as-a-git-repo-96c0e6412549

#Create and setup the Dropbox base repo
mkdir -p ~/Dropbox/Git 
cd ~/Dropbox/Git 
# Do the following for every project you want to add
git init --bare myProject.git

# Add Dropbox as a remote branch named "origin"
cd ~/myProject 

kylelambert101

# To run a cmd command from git bash, prefix with "cmd //c"
cmd //c echo %PATH%

# I have experienced scenarios where I have custom batch files that are in my cmd 
# path and I want to call them from Git Bash. 
# To do this, alias the command names in ~/.bashrc to add the cmd prefix:

# .bashrc
alias search='cmd //c search'
alias explore='cmd //c explore'

kylelambert101

export const convertToTitleCase = (str) => {
  return str
    // Split on spaces
    .split(' ')
    // Capitalize the first letter of each word
    .map((word) =>
      word.length > 0
        ? word[0].toUpperCase() + word.substr(1).toLowerCase()
        : word
    )

kylelambert101

const myList = [
    { title: "First one", link: "https://en.wikipedia.org" },
    { title: "Second One", link: "https://en.wikipedia.org" },
    { title: "Actual First One", link: "https://en.wikipedia.org" },
  ];

// Sort the list by {each}.title, alphabetically
const sortedList = myList.sort((a, b) => (a.title > b.title ? 1 : -1))

kylelambert101

'''
Use this to set up basic configuration for application logging. 
Call this at the top in one file, then any following functions (even 
in other files) can send log statements via the typical logging 
functions (logging.info, logging.error, etc)
'''

# Set up logging
logging.basicConfig(
    level=logging.DEBUG,