raineorshine

import Emitter from 'emitter20'

/** Returns a [promise, resolve] pair. The promise is resolved when resolve(value) is called. */
const promiseOnDemand = <T>(): [Promise<T>, (value: T) => void] => {
  const emitter = new Emitter()
  const promise = new Promise<T>((resolve, reject) => {
    emitter.on('resolve', resolve)
  })

  /** Triggers the emitter to resolve the promise. */

raineorshine

[
  {
    "key": "alt+cmd+d",
    "command": "editor.action.revealDefinition",
    "when": "editorHasDefinitionProvider && editorTextFocus && !isInEmbeddedEditor"
  },
  {
    "key": "cmd+r",
    "command": "editor.action.rename",
    "when": "editorHasRenameProvider && editorTextFocus && !editorReadonly"

raineorshine

i ♡ indexeddb

raineorshine

/** Stream a file by chunk size and return whole lines. */
// See: https://stackoverflow.com/a/39505307/480608
function readLines(
  file: Blob,
  {
    chunkSizeBytes,
    data,
    complete,
  }: { chunkSizeBytes?: number; data?: (lines: string) => void; complete?: (err: DOMException | null) => void },
) {

raineorshine

General Tip

"The trick is to catch exceptions at the proper layer, where your program can either meaningfully recover from the exception and continue without causing further errors, or provide the user with specific information, including instructions on how to recover from the error. When it is not practical for a method to do either of these, simply let the exception go so it can be caught later on and handled at the appropriate level."

Resources

Advantages of Exceptions
Excellent example of separating error-handling code from program logic

Three Rules for Effective Exception Handling
Longer explanation and case study of exception use, including the basic principles of "throw early" and "catch late". Clear and thorough.

raineorshine

{
  "includes": ["*.ts"],
  "compilerOptions": {
    // es modules
    "module": "es2022",
    "moduleResolution": "node",
    // top-level await
    "target": "es2022"
  }
}

raineorshine

Aardvark
Aardwolf
African Buffalo
African Elephant
African Leopard
Albatross
Alligator
Alpaca
Amphibian
Anaconda

raineorshine

const Web3 = require('web3')
const Tx = require('ethereumjs-tx').Transaction

// connect to Infura node
const web3 = new Web3(new Web3.providers.HttpProvider('https://mainnet.infura.io/INFURA_KEY'))

// the address that will send the test transaction
const addressFrom = '0x1889EF49cDBaad420EB4D6f04066CA4093088Bbd'
const privateKey = new Buffer('PRIVATE_KEY', 'hex')

raineorshine

@media all and (max-width: 1024px) {...}
@media all and (min-width: 800px) and (max-width: 1024px) {...}
@media not screen and (color) {...}
@media only screen and (orientation: portrait) {...}

@media all and (max-width: 420px) {
  section, aside {
    float: none;
    width: auto;
  }

raineorshine

# Status Commands - These are always safe to execute and don't change the repo.
git status                    # Print the status of the current repo
git log                       # Print a list of the most recent commits
git diff                      # Show all differences between unstaged changes 
                              # and the last commit.
git remote -v                 # Show all remotes with name and url.

# Repo Commands - These modify the state of the repo in some way but do not modify files
git init                      # Initialize a new repo in the current folder
git add MYFILE                # Add a file with changes to the staging area to be committed.