Kris Kaczor krzkaczor

Note:

When this guide is more complete, the plan is to move it into Prepack documentation.
For now I put it out as a gist to gather initial feedback.

A Gentle Introduction to Prepack (Part 1)

If you're building JavaScript apps, you might already be familiar with some tools that compile JavaScript code to equivalent JavaScript code:

Babel lets you use newer JavaScript language features, and outputs equivalent code that targets older JavaScript engines.

If you enjoyed reading this, I'm intending to do more blogging like this over here: https://cdgd.tech

This is not a complaint about Webpack or v4 in any way. This is just a record of my process trying it out so I could provide feedback to the webpack team

Hmm... I don't see any docs for 4.0 on https://webpack.js.org. I guess I'll just wing it. All I need to do is npm i -D webpack@next, right?

+ [email protected]

Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

Example

Achieving warp speed with Rust

type StringBool = "true"|"false";


interface AnyNumber { prev?: any, isZero: StringBool };
interface PositiveNumber { prev: any, isZero: "false" };

type IsZero<TNumber extends AnyNumber> = TNumber["isZero"];
type Next<TNumber extends AnyNumber> = { prev: TNumber, isZero: "false" };
type Prev<TNumber extends PositiveNumber> = TNumber["prev"];

What I Wish I'd Known About Equity Before Joining A Unicorn

Disclaimer: This piece is written anonymously. The names of a few particular companies are mentioned, but as common examples only.

This is a short write-up on things that I wish I'd known and considered before joining a private company (aka startup, aka unicorn in some cases). I'm not trying to make the case that you should never join a private company, but the power imbalance between founder and employee is extreme, and that potential candidates would

	#!/usr/bin/env bash
	## This script is invoked like
	##
	## $ with-deployed-system node index.js
	##
	## which will run Node in the environment of a running Geth testnet
	## with the Sai system deployed.
	##
	## The environment has ETH_RPC_URL set along with the contract addresses.
	##

	const Web3 = require('web3')

	// WRONG
	// const localProviderUrl = 'wss://localhost:8545'

	// Result:
	//
	// connection not open on send()
	// Error in subscription wss://localhost:8545
	// Error: connection not open

	/*

	In JavaScript, objects can be used to serve various purposes.

	To maximise our usage of the type system, we should assign different types to our objects depending
	on the desired purpose.

	In this blog post I will clarify two common purposes for objects known as records and dictionaries
	(aka maps), and how they can both be used with regards to the type system.

	0x00 0 STOP
	0x01 3 ADD
	0x02 5 MUL
	0x03 3 SUB
	0x04 5 DIV
	0x05 5 SDIV
	0x06 5 MOD
	0x07 5 SMOD
	0x08 8 ADDMOD
	0x09 8 MULMOD