solve Day02 in JS

Day02/js/solution.js

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+const fs = require('fs');
+const path = require('path');
+
+/**
+ * Parses a line from the game data file.
+ *
+ * @param {string} line - A line from the game data file.
+ * @returns {object} - An object containing the game ID and the max counts of each color.
+ */
+function parseGameData(line) {
+    const parts = line.split(': ');
+    const gameID = parseInt(parts[0].split(' ')[1]);
+    const colorCounts = { red: 0, green: 0, blue: 0 };
+
+    const subsets = parts[1].split('; ');
+    subsets.forEach(subset => {
+        subset.split(', ').forEach(color => {
+            const [count, colorName] = color.split(' ');
+            colorCounts[colorName] = Math.max(colorCounts[colorName], parseInt(count));
+        });
+    });
+
+    return { gameID, colorCounts };
+}
+
+/**
+ * Calculates the power of a cube set.
+ *
+ * @param {object} colorCounts - The counts of each color.
+ * @returns {number} - The power of the cube set.
+ */
+function calculatePower(colorCounts) {
+    return colorCounts.red * colorCounts.green * colorCounts.blue;
+}
+
+/**
+ * Processes the game data from a file.
+ *
+ * @param {string} filePath - The path to the file.
+ * @returns {number} - The sum of the powers of the minimum cube sets.
+ */
+function processGames(filePath) {
+    const lines = fs.readFileSync(filePath, 'utf-8').split('\n').filter(line => line);
+    let sumOfPowers = 0;
+
+    lines.forEach(line => {
+        const { colorCounts } = parseGameData(line);
+        sumOfPowers += calculatePower(colorCounts);
+    });
+
+    return sumOfPowers;
+}
+
+// Run tests
+const testResult = processGames(path.join(__dirname, '../test.txt'));
+console.assert(testResult === 2286, `Test failed: Expected 2286, got ${testResult}`);
+console.log(`Test Passed: Sum of powers for the minimum cube sets is ${testResult}`);
+
+// Process the actual input file
+const result = processGames(path.join(__dirname, '../input.txt'));
+console.log(`From input.txt: Sum of powers for the minimum cube sets is ${result}`);