Advent of Code 2018... GOLFED!

aoc.js

// This is my list of solutions to the Advent of Code challanges
// They are written in JavaScript, with the goal of getting the
// size of them to be as small as possible.
// Each one assumes that the variable y is an array of the body's
// contents. You can get that by doing the following in the
// browser console of the input:
y=document.body.innerText.split("\n")
// The documents may have a trailing newline, but you can do this
// to solve that
y=y.slice(0,y.length-1)

// DAY 1, PART 1
y.map(Number).reduce((a,b)=>a+b)
// returns the answer

// DAY 1, PART 2
// I lost this code and am too lazy to recreate it right now

// DAY 2, PART 1
t=0;f=0;for(i of y){s={};for(o of i)s[o]?s[o]++:s[o]=1;q=Object.values(s);q.includes(2)?t++:0;q.includes(3)?f++:0}f*t

// DAY 2, PART 2
meh