#! /usr/bin/node "use strict" // by Frank Tan // https://stackoverflow.com/questions/38400594/javascript-deep-comparison function deepEqual(a,b) { if( (typeof a == 'object' && a != null) && (typeof b == 'object' && b != null) ) { var count = [0,0]; for( var key in a) count[0]++; for( var key in b) count[1]++; if( count[0]-count[1] != 0) {return false;} for( var key in a) { if(!(key in b) || !deepEqual(a[key],b[key])) {return false;} } for( var key in b) { if(!(key in a) || !deepEqual(b[key],a[key])) {return false;} } return true; } else { return a === b; } } function rankarray(a) { const b = Array.from(new Set(a)); b.sort(function(p, q) { return p - q; }); let c = new Map(); b.forEach((n, i) => { c.set(n, i + 1); }); let out = []; for (let v of a) { out.push(c.get(v)); } return out; } if (deepEqual(rankarray([55, 22, 44, 33]), [4, 1, 3, 2])) { process.stdout.write("Pass"); } else { process.stdout.write("FAIL"); } process.stdout.write(" "); if (deepEqual(rankarray([10, 10, 10]), [1, 1, 1])) { process.stdout.write("Pass"); } else { process.stdout.write("FAIL"); } process.stdout.write(" "); if (deepEqual(rankarray([5, 1, 1, 4, 3]), [4, 1, 1, 3, 2])) { process.stdout.write("Pass"); } else { process.stdout.write("FAIL"); } process.stdout.write("\n");