lobre

Zig Type System

Zig aims to be a simple language. It is not easy to define what simple exactly means, but zig is also a low-level programming language that aims for c-compatibility. To reach this goal, it needs good semantics in its type system so that developers have a complete toolbox to manipulate data.

So types in zig are composable, but this can become rapidly overwhelming. See those examples. Are you able to understand them at a glance, as soon as you read them?

*const ?u8
?*const u8
*const [2]u8

steveruizok

export class Cache<T extends object, K> {
	items = new WeakMap<T, K>()

	get<P extends T>(item: P, cb: (item: P) => K) {
		if (!this.items.has(item)) {
			this.items.set(item, cb(item))
		}
		return this.items.get(item)!
	}

munrocket

WGSL 3D SDF Primitives

Revision: 06.08.2023, https://compute.toys/view/407

Sphere - exact

fn sdSphere(p: vec3f, r: f32) -> f32 {
  return length(p) - r;
}

steveruizok

export type RayOptions = {
  max?: number
  min?: number
  start?: number
}

/**
 * Casts a ray in a given direction and check if it hits something.
 * @param from - [x, y]

janicduplessis

import { Box, useDimensions, useSafeAreaInsets } from '@th3rdwave/ui';
import * as React from 'react';
import { updateSafeAreaInsets } from './metrics';

/**
 * This is a hack to simulate iOS keyboard behavior on Android. We use the
 * keyboard behavior that causes the window to resize and make sure
 * the min height stays the same when we detect that the keyboard opens.
 */
export function AppMinHeightWrapper({

acutmore

A compile-time 4-Bit Virtual Machine implemented in TypeScript's type system. Capable of running a sample 'FizzBuzz' program.

Syntax emits zero JavaScript.

type RESULT = VM<
  [
    ["push", N_1],         // 1
    ["push", False],       // 2
 ["peek", _], // 3

enepomnyaschih

/*
MIT License

Copyright (c) 2020 Egor Nepomnyaschih

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is

sophiebits

const {useCallback, useEffect, useReducer, useRef} = require('react');

let effectCapture = null;

exports.useReducerWithEmitEffect = function(reducer, initialArg, init) {
  let updateCounter = useRef(0);
  let wrappedReducer = useCallback(function(oldWrappedState, action) {
    effectCapture = [];
    try {
      let newState = reducer(oldWrappedState.state, action.action);

Bleuje

// Processing code by Etienne JACOB
// motion blur template by beesandbombs
// opensimplexnoise code in another tab might be necessary
// --> code here : https://gist.github.com/Bleuje/fce86ef35b66c4a2b6a469b27163591e


int[][] result;
float t, c;

float ease(float p) {

threepointone

https://twitter.com/snookca/status/1073299331262889984?s=21

‪“‬In what way is JS any more maintainable than CSS? How does writing CSS in JS make it any more maintainable?”

‪Happy to chat about this. There’s an obvious disclaimer that there’s a cost to css-in-js solutions, but that cost is paid specifically for the benefits it brings; as such it’s useful for some usecases, and not meant as a replacement for all workflows. ‬

‪(These conversations always get heated on twitter, so please believe that I’m here to converse, not to convince. In return, I promise to listen to you too and change my opinions; I’ve had mad respect for you for years and would consider your feedback a gift. Also, some of the stuff I’m writing might seem obvious to you; I’m not trying to tell you if all people of some of the details, but it might be useful to someone else who bumps into this who doesn’t have context)‬

So the big deal about css-in-js (cij) is selectors.