Day 4

04/part1.js

@@ -0,0 +1,53 @@
+const fs = require('fs')
+const readline = require('readline');
+
+const readInterface = readline.createInterface({
+    input: fs.createReadStream('input'),
+    console: false
+});
+
+
+let passports = [];
+let cPass = {};
+
+readInterface.on('line', function(line) {
+  if (line.length == 0) {
+    passports.push(cPass);
+    cPass = {};
+    return;
+  }
+
+  line.split(' ').forEach(function(kv) {
+    parts = kv.split(':');
+    cPass[parts[0]] = parts[1];
+  });
+
+//  console.log(cPass);
+});
+
+let required = new Set(['byr', 'iyr', 'eyr', 'hgt', 'hcl', 'ecl', 'pid' ]);
+let optional = new Set([ 'cid' ]);
+
+readInterface.on('close', function(line) {
+  // Save the last passport if it has any fields
+  if (Object.keys(cPass).length > 0) {
+    passports.push(cPass);
+  }
+
+  let count = 0;
+  passports.forEach(function(passport) {
+    let keys = new Set(Object.keys(passport));
+    let missing = new Set([...required].filter(x => !keys.has(x)))
+
+    console.log(passport);
+    console.log(missing);
+    console.log("");
+
+    if (missing.size == 0) {
+      count++;
+    }
+  });
+  
+  console.log(count);
+});
+