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#!/usr/bin/python3
from datetime import date, timedelta, datetime
# Disclaimer: not investment advice, and this is a sloppy script!
# Objective Inputs
GLOBAL_LOCKED_veCRV = 362000000
# Subjective Inputs
@cleanunicorn
cleanunicorn / fisher-yates.sol
Created October 6, 2021 09:55
Fisher Yates Shuffle, aka Knuth Shuffle proof of concept
contract Shuffle {
function shuffle(
uint size,
uint entropy
)
public
pure
returns (
uint[] memory
) {
@sindresorhus
sindresorhus / esm-package.md
Last active May 25, 2024 20:03
Pure ESM package

Pure ESM package

The package that linked you here is now pure ESM. It cannot be require()'d from CommonJS.

This means you have the following choices:

  1. Use ESM yourself. (preferred)
    Use import foo from 'foo' instead of const foo = require('foo') to import the package. You also need to put "type": "module" in your package.json and more. Follow the below guide.
  2. If the package is used in an async context, you could use await import(…) from CommonJS instead of require(…).
  3. Stay on the existing version of the package until you can move to ESM.
@gaearon
gaearon / prepack-gentle-intro-1.md
Last active May 3, 2024 12:56
A Gentle Introduction to Prepack, Part 1

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.
@nepsilon
nepsilon / how-to-secure-your-site-with-https.md
Last active August 9, 2018 11:19
How to secure your site with HTTPS? — First published in fullweb.io issue #101

How to secure your site with HTTPS?

With HTTP everything is visible when traveling on the Internet. By generating an SSL certificate and configuring your webserver you can force browsers to use HTTPS. Here is how to proceed:

# 1. Install letsencrypt
sudo pip install letsencrypt
@ChrisChares
ChrisChares / AsyncAwaitGenerator.md
Last active September 30, 2022 13:26
async/await with ES6 Generators & Promises

async/await with ES6 Generators & Promises

This vanilla ES6 function async allows code to yield (i.e. await) the asynchronous result of any Promise within. The usage is almost identical to ES7's async/await keywords.

async/await control flow is promising because it allows the programmer to reason linearly about complex asynchronous code. It also has the benefit of unifying traditionally disparate synchronous and asynchronous error handling code into one try/catch block.

This is expository code for the purpose of learning ES6. It is not 100% robust. If you want to use this style of code in the real world you might want to explore a well-tested library like co, task.js or use async/await with Babel. Also take a look at the official async/await draft section on desugaring.

Compatibility

  • node.js - 4.3.2+ (maybe earlier with
@ljharb
ljharb / array_iteration_thoughts.md
Last active May 22, 2024 09:22
Array iteration methods summarized

Array Iteration

https://gist.github.com/ljharb/58faf1cfcb4e6808f74aae4ef7944cff

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 mu

@nepsilon
nepsilon / email-address-syntax-validation-let-the-browser-do-it.md
Last active August 14, 2022 18:34
Email address syntax validation? Let the browser do it (without regexp) — First published in fullweb.io issue #77

Email address syntax validation? Let the browser do it (without regexp)

Here is a simple and robust way to check for the validity of an email address syntax directly in the browser. No need for crazy regular expressions.

e = document.createElement('input')
e.type = 'email'
// check some email addresses
e.value = 'hi@'
@nepsilon
nepsilon / http-methods-it-s-not-only-about-get-and-post.md
Last active July 18, 2020 00:35
HTTP methods: It’s not only about GET and POST — First published in fullweb.io issue #76

HTTP methods: It’s not only about GET and POST

HTML forms let us only use GET and POST methods, but HTTP provides us with more:

  • HEAD It works like GET but will not return the body. Useful for checking if the resource is 404 or has been updated (via caching headers).

  • PUT A way for HTTP to tell "create or update if exist" the resource at this URL with my payload.