A straightforward day 1 for a Javascript / NodeJS solution.
Poorly Optimized JS Solution
let position = 50;
let answer1 = 0;
let answer2 = 0;
const sequence = require('fs').readFileSync('input-day1.txt', 'utf-8');
sequence.split('\n').forEach(instruction => {
const turn = instruction.charAt(0);
let distance = parseInt(instruction.slice(1), 10);
while (distance > 0) {
distance -= 1;
if (turn === 'L') {
position -= 1;
} else if (turn === 'R') {
position += 1;
}
if (position >= 100) {
position -= 100;
} else if (position < 0) {
position += 100;
}
if (position === 0) {
answer2 += 1;
}
}
if (position === 0) {
answer1 += 1;
}
});
console.log(`Part 1 Answer: ${answer1}`);
console.log(`Part 2 Answer: ${answer2}`);