nicolo-ribaudo

Optional chaining assignment proposal

Basically, allow this:

foo?.bar = value;

which is equivalent to

foo == null ? undefined : (foo.bar = value);

nicolo-ribaudo

const CH_BRACE_L = 0x7b as const;
const CH_BRACE_R = 0x7d as const;
const CH_SQUARE_L = 0x5b as const;
const CH_SQUARE_R = 0x5d as const;
const CH_QUOTE_D = 0x22 as const;
const CH_ESCAPE = 0x5c as const;
const CH_COMMA = 0x2c as const;
const CH_COLON = 0x3a as const;
const CH_DOT = 0x2e as const;
const CH_MINUS = 0x2d as const;

nicolo-ribaudo

Meta

Key ID: C6CB6CC54E363735

Subkeys: AAFDA9101C58F338, A96EDD9C10BC77A5, 5BB1D2E5A4C8404B

Setup GPG

git config --global user.signingkey AAFDA9101C58F338

nicolo-ribaudo

This for loop:

for (let i = 0, getI = () => i; i < 3; i++)
  console.log(getI());

unrolls to:

nicolo-ribaudo

"use strict";

const synchronize = require("./synchronize.cjs");

synchronize.export({
  async getMyObj(value) {
    await new Promise((resolve) => setTimeout(resolve, 2000));
    return { foo: value * 3 };
  }
});

nicolo-ribaudo

var unshift = Function.call.bind([].unshift);
var test = Function.call.bind(/./.test);

function update(ar) {
  unshift(ar, ar[ar.length - 1]);
}

function fn(check, id) {
  if (check != true) throw new Error("check must be true");
  if (id != 1 && id != 2) throw new Error("id must be 1 or 2");

nicolo-ribaudo

import { pascal, binomePower } from "./math.js";

console.log(pascal(10)); // [1, 10, 45, 120, 210, 252, 210, 120, 45, 10, 1]
console.log(binomePower(3)); // "x^3 + 3x^2y + 3xy^2 + y^3"

nicolo-ribaudo

const Y = a=>(a=>a(a))(b=>a((...a)=>b(b)(...a)));

// Usage
/*
 * var result = Y((the function itself) => (...parameters) => {
 *   return result;
 * })(...parameters);
 *
 */