Rajesh Subhankar rajeshsubhankar

Keybase proof

I hereby claim:

I am rajeshsubhankar on github.
I am rajeshsubhankar (https://keybase.io/rajeshsubhankar) on keybase.
I have a public key ASC7ai9mx-6lLHCqqUn-vScOYiEW1U0LjPrzzFQVMcVuAgo

To claim this, I am signing this object:

3Box is a social profiles network for web3. This post links my 3Box profile to my Github account!

✅ did:muport:QmSBe7G1QioPMPvBUZU3NqqgdxZSHyKq2ZX85rJfWThyGr ✅

Create your profile today to start building social connection and trust online. https://3box.io/

While attempting to explain JavaScript's reduce method on arrays, conceptually, I came up with the following - hopefully it's helpful; happy to tweak it if anyone has suggestions.

Intro

JavaScript Arrays have lots of built in methods on their prototype. Some of them mutate - ie, they change the underlying array in-place. Luckily, most of them do not - they instead return an entirely distinct array. Since arrays are conceptually a contiguous list of items, it helps code clarity and maintainability a lot to be able to operate on them in a "functional" way. (I'll also insist on referring to an array as a "list" - although in some languages, List is a native data type, in JS and this post, I'm referring to the concept. Everywhere I use the word "list" you can assume I'm talking about a JS Array) This means, to perform a single operation on the list as a whole ("atomically"), and to return a new list - thus making it much simpler to think about both the old list and the new one, what they contain, and


	#include<bits/stdc++.h>

	using namespace std;

	struct node
	{
	int val;
	node* left;
	node* right;

	#include<bits/stdc++.h>

	using namespace std;

	bool isChar(string s)
	{
	if(s.size() >1 ) return false;

	switch (s[0]) {
	case '+': return true;

	var Web3 = require('web3');
	const Tx = require('ethereumjs-tx')

	var web3 = new Web3(Web3.givenProvider \|\| "ws://localhost:8546");

	// the address that will send the test transaction
	const addressFrom = '0xDFf7787B927c0F03C3a8a49aF6726a074923663c'
	//private key of above address
	const privKey = 'replace_me'
	//address to receive ether

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

	// 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 privKey = 'PRIVATE_KEY'

	const Web3 = require('web3');
	const Tx = require('ethereumjs-tx');
	const BigNumber = require('bignumber.js');
	const abi = require('ethereumjs-abi');


	// connect to Infura node
	const web3 = new Web3(new Web3.providers.HttpProvider('https://ropsten.infura.io/v2/INFURA_PROJECT_ID'));
	// the address that will send the test transaction
	const addressFrom = 'SENDER_ADDRESS';

	const ethers = require('ethers');

	const provider = new ethers.providers.JsonRpcProvider('https://ropsten.infura.io/v2/INFURA_PROJECT_ID');
	const addressFrom = 'SENDER_ADDRESS';
	const privateKey = 'SENDER_ADDRESS_PRIVATE_KEY';
	const wallet = new ethers.Wallet(privateKey, provider);

	const addressTo = 'RECEIVER_ADDRESS';