samsonajulor

//flat an array
function flat(arr, depth) {
  if (depth > 0) {
    return arr.reduce(
      (acc, val) => acc.concat(Array.isArray(val) ? flat(val, depth - 1) : val),
      []
    )
  } else {
    return arr.slice()
  }

samsonajulor

#! /bin/bash

# ECHO COMMAND
# echo Hello World!

# VARIABLES
# Uppercase by convention
# Letters, numbers, underscores
NAME="Bob"
# echo "My name is $NAME"

samsonajulor

1. Write a script to interact with an Ethereum account on mainnet , return its balance and transaction count.

import { ethers } from 'ethers';

async function getBalanceAndTransactionCount(address: string) {
    try {
        // Create a default provider for mainnet
        const provider = ethers.getDefaultProvider('mainnet');

        // Get the balance of the Ethereum address

samsonajulor

import { ethers } from 'ethers';

(async () => {
  const address = '0x67147840C8eca35C819C7523861E6A1D75D93200';

  try {
    // get transaction count
    const mainnetTransactionCount = await ethers.getDefaultProvider('mainnet').getTransactionCount(address);
    const goerliTransactionCount = await ethers.getDefaultProvider('goerli').getTransactionCount(address);
    const sepoliaTransactionCount = await ethers.getDefaultProvider('sepolia').getTransactionCount(address);

samsonajulor

import { ethers } from 'ethers';

async function getTokenInfo(tokenAddress: string, walletAddress: string) {
  const provider = ethers.getDefaultProvider('homestead');

  // Create a contract instance for the USDC token using the ERC-20 ABI
  const usdcToken = new ethers.Contract(
    tokenAddress,
    [
      'function name() view returns (string)',

samsonajulor

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