Resolve Project Euler 22

Project-Euler/Problem022.js

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+import * as fs from 'fs'
+
+/**
+ * Problem 22 - Names scores
+ * @see {@link https://projecteuler.net/problem=22}
+ *
+ * Using names.txt (right click and 'Save Link/Target As...'), a 46K text file containing over
+ * five-thousand first names, begin by sorting it into alphabetical order. Then working out the
+ * alphabetical value for each name, multiply this value by its alphabetical position in the list to
+ * obtain a name score.
+ *
+ * For example, when the list is sorted into alphabetical order, COLIN,
+ * which is worth 3 + 15 + 12 + 9 + 14 = 53, is the 938th name in the list.
+ * So, COLIN would obtain a score of 938 × 53 = 49714.
+ *
+ * What is the total of all the name scores in the file?
+*/
+
+export function namesScores (txtPath) {
+  const names = fs.readFileSync(txtPath, 'utf8').replaceAll('"', '').split(',')
+
+  // Sort ascending the list of names
+  names.sort((a, b) => (a > b))
+
+  let totalSum = 0
+  for (let i = 0; i < names.length; i++) {
+    let nameSum = 0
+    for (let j = names[i].length; j--;) {
+      nameSum += names[i].charCodeAt(j) - ('a'.charCodeAt(0) - 1)
+    }
+
+    totalSum += nameSum * (i + 1)
+  }
+
+  return totalSum
+}

Project-Euler/test/Problem022.test.js

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+import * as path from 'path'
+import { namesScores } from '../Problem022.js'
+
+describe('checking Names Scores', () => {
+  // Project Euler Names Scores
+  test('Test Names Scores', () => {
+    expect(namesScores(path.resolve('./Project-Euler/test/Problem022.txt'))).toBe(871198282)
+  })
+})