evinism

Keybase proof

I hereby claim:

• I am evinism on github.
• I am evin (https://keybase.io/evin) on keybase.
• I have a public key ASA1VVl2QJhgpn5JxFwEhxcK8Uk_PuwkO8sgP5d75lMzLwo

To claim this, I am signing this object:

evinism

// copy paste this script into the JS console on xkcd.com
// you can open the js console by pressing cmd-alt-j
// or by right clicking, pressing "inspect element", and navigating to the tab that says console.

const amt = 2000;

$('body').html('');

const getImageUrl = (num) => 'http://generated.inspirobot.me/00' + (Math.floor(num / 10000) + 1) + '/aXm' + (num - Math.floor(num / 10000)*10000 + 1) + 'xjU.jpg';

evinism

=== Background ===

For one issue at work, we tossed around the idea of generating UUIDs
clientside in order to ensure that we had a unique immutable id without
having to go to the server to get an ID back, primarily for p2p applications.
Obviously, if somebody's maliciously creating ids, they can choose arbitrary 
values and create collisions. Additionally, one client could tell if another
client had already chosen a certain value for an id by trying to commit a 
certain UUID to the db. 

evinism

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evinism

MilliEQL

A small embeddable query language

MilliEQL is a small query language built for embedding within applications. It supports logic for querying and manipulating data in a simple, typesafe manner.

Motivation

Having a simple query language allows

• Shared frontend / backend logic for form validation or price calculation.
• User-submitted logic

evinism

const bareStrings = new Proxy({}, {
  has(_, prop){
    return window[prop] === undefined;
  },
  get(_, prop){
    return prop.toString();
  }
});

with(bareStrings){

evinism

const cat = {
  variant: 'hunter',
  preferredPrey: 'anything',
}

const dog = {
  variant: 'sniffer',
  smellSkill: 'excellent'
}

evinism

class Indexable {
  constructor(){
    this._indexer = Symbol();
  }
  [Symbol.toPrimitive](){ return this._indexer }
}

class Animal extends Indexable {}

const cat = new Animal();

evinism

function only(definedItems){
  return new Proxy({}, {
    has(_, prop){
      return !definedItems.includes(prop);
    },
    get(_, prop){
      throw new Error("Referenced variable " + prop.toString() + " out of scope!");
    },
    set(_, prop){
      throw new Error("Referenced variable " + prop.toString() + " out of scope!");

evinism

function uncomment(fn){
  const body = fn.toString().replace(/\/\//, '');
  return new Function(`return (${body})(...arguments)`);
}

function fn(a){
  // return a + 1;
  return a
}