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])  ⟼ ['▲','▲','●','●']

pgib

Place in /Library/Backblaze.bzpkg/bzdata/bzbackup, and run with:

ruby purge_nonexistent.rb

It will process bzfileids.dat placing any file that exists in bzfileids.dat-found and any missing file in bzfileids.dat-missing. You can then back up your original file and replace it with bzfileids.dat-found.

My original file was almost 1.4GB. It had grown so large that the backup would cause all my fans spin and it never seemed to complete. Backblaze support suggested I delete my entire backup with them and start over. After running this script, my new bzfileids.dat file is 301MB. Still huge, but about 1/5th the size. The backup seemed to go much more smoothly.

yosriady

pragma solidity ^0.5.11;

contract SimpleToken {
    string public constant name = "GeekCamp Token";
    string public constant symbol = "GEEK";
    uint8 public constant decimals = 0;
    
    address public minter;
    mapping (address => uint) private _balances;

souporserious

// modified from https://stackoverflow.com/a/52008131/1461204
const zoomEvent = new Event('zoom')
let currentRatio = window.devicePixelRatio

function checkZooming() {
  if (currentRatio !== window.devicePixelRatio) {
    window.dispatchEvent(zoomEvent)
  }
}