mscharley

/* Note, this is only for library interop code. This is *not* a good way to do things in pure Reason code. */

module type GeneratorType {
  type value('a);
  type t('a);
  type fn('a) = unit => t('a);
  
  let valueGet: value('a) => option('a);
  let doneGet: value('a) => bool;
  

jordwalke

#!/bin/bash

# Invoke like this:
# ./watch.sh my command here
# And it will run 'my command here' once, and then when it detects changes.

# TODO: Don't just search in the last second. Search for updates since the last
# completed build. Otherwise for big directories, midway through your search
# you've already taken 1s and you will miss updates.

leebyron

/**
 * For compare function return:
 * - Less than zero: item1 has higher priority than item2.
 * - Zero: same.
 * - Greater than zero: item1 has lower priority than item2.
 */
export type CompareFunction<T> = (item1: T, item2: T) => number;

export class PriorityQueue<T> {
  _items: Array<T>;

SaraVieira

In this talk we will be all discussing the origin of the furry fandom. How we will thogheter create a new furry-in-js framework. We will going over how they have changed the current fandom world, our hearts and the js world in 5 very awesome minutes! This talk is to prove a point that stars mean nothing in this case.

https://reactiveconf.com/

rauschma

/*:::::::::: copySync(src, dest, [options]) ::::::::::*/
/* https://github.com/jprichardson/node-fs-extra/blob/master/docs/copy-sync.md */

let optBoolToJS = (optBool: option(bool)) =>
  switch (optBool) {
  | None => None
  | Some(b) => Some(Js.Boolean.to_js_boolean(b));
  };

type copyOpts;

jaredly

let recv = (client, maxlen) => {
  let bytes = Bytes.create(maxlen);
  let len = Unix.recv(client, bytes, 0, maxlen, []);
  Bytes.sub_string(bytes, 0, len)
};

let parse_top = top => {
  let parts = Str.split(Str.regexp("[ \t]+"), top);
  switch (parts) {

lilactown

/**
 * Making promises
 */
let okPromise = Js.Promise.make((~resolve, ~reject as _) => [@bs] resolve("ok"));

/* Simpler promise creation for static values */
Js.Promise.resolve("easy");

Js.Promise.reject(Invalid_argument("too easy"));

threepointone

// inifinite scrolling of content without extra wrappers 
const { render, findDOMNode  } = ReactDOMFiber

class App extends React.Component {
  render() {
  // wrap the root element with an Intersection Observer, exposing .observe for children
    return <Intersection>
      <div style={{ height: 200, overflow: 'auto' }}>
        <Page offset={0} count={10} />
      </div>

rondy

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.

---

Effective Engineer - Notes

• By Edmond Lau
• Highly Recommended 👍
• http://www.theeffectiveengineer.com/

What's an Effective Engineer?

vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?