Enable Javascript in your browser and then refresh this page, for a much enhanced experience.
4th solution in Uncategorized category for Follow Instructions by vvm70
import assert from "assert";
var follow = instructions => [...instructions].reduce((t, v) => {
t[0] += +(v == 'r') - +(v == 'l');
t[1] += +(v == 'f') - +(v == 'b');
return t;
}, [0, 0]);
console.log('Example:');
console.log(follow('fflff'));
// These "asserts" are used for self-checking
assert.deepEqual(follow('fflff'), [-1, 4]);
assert.deepEqual(follow('ffrff'), [1, 4]);
assert.deepEqual(follow('fblr'), [0, 0]);
console.log("Coding complete? Click 'Check' to earn cool rewards!");
March 30, 2021