dragonskyside

// 1. Import everything
import { Wallet, BigNumber, ethers, providers } from 'ethers'
const { FlashbotsBundleProvider, FlashbotsBundleResolution } = require('@flashbots/ethers-provider-bundle')

/*
Mainnet
const provider = new providers.JsonRpcProvider('https://eth-mainnet.g.alchemy.com/v2/cmHEQqWnoliAP0lgTieeUtwHi0KxEOlh')
const wsProvider = new providers.WebSocketProvider('wss://eth-mainnet.g.alchemy.com/v2/cmHEQqWnoliAP0lgTieeUtwHi0KxEOlh')
*/

dragonskyside

# nil? can be used on any Ruby object. It returns true only if the object is nil.
nil.nil?   # => true 
[].nil?    # => false 
{}.nil?    # => false
"".nil?    # => false
" ".nil?   # => false
true.nil?  # => false

# empty? can be used on some Ruby objects including Arrays, Hashes and Strings. It returns true only if the object's length is zero.
nil.empty?   # NoMethodError: undefined method `empty?' for nil:NilClass