Solution for day one

.nvmrc

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+14.17.6

01/code.js

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+const fs = require('fs');
+
+const inputArray = fs.readFileSync('input.txt').toString().split("\n");
+
+// Part One
+let caloriesArray = [];
+let calories = 0;
+
+for (i in inputArray) {
+  const value = parseInt(inputArray[i]);
+  if (value > 0) {
+    calories += value;
+  } else {
+    caloriesArray.push(calories);
+    calories = 0;
+  }
+}
+
+console.log(Math.max(...caloriesArray));
+
+
+// Part Two
+
+const first = Math.max(...caloriesArray);
+
+caloriesArray.splice(caloriesArray.indexOf(first), 1);
+const second = Math.max(...caloriesArray);
+
+caloriesArray.splice(caloriesArray.indexOf(second), 1);
+const third = Math.max(...caloriesArray);
+
+console.log(first + second + third);