solve p22 in js

README.rst

@@ -46,7 +46,7 @@ Olivia's Project Euler Solutions
 +------------+--------------------------+--------+-------------------+
 | Language   | Version                  | Solved | Status            |
 +============+==========================+========+===================+
-| C          | C99+ in: |clang|, |br|   | 21     | |Ci| |br|         |
+| C          | C99+ in: |clang|, |br|   | 20     | |Ci| |br|         |
 |            | |gcc|, |pcc|, |tcc| |br| |        | |C-Cov| |br|      |
 |            | C11+ in: |msvc| [1]_     |        | |CodeQL|          |
 +------------+--------------------------+--------+-------------------+
@@ -58,7 +58,7 @@ Olivia's Project Euler Solutions
 |            |                          |        | |Cs-Cov| |br|     |
 |            |                          |        | |CodeQL|          |
 +------------+--------------------------+--------+-------------------+
-| JavaScript | Node 12+ |br|            | 13     | |JavaScript| |br| |
+| JavaScript | Node 12+ |br|            | 14     | |JavaScript| |br| |
 |            | Bun 1.0+ |br|            |        | |Js-Cov| |br|     |
 |            | Firefox [2]_ |br|        |        | |CodeQL| |br|     |
 |            | Chrome [2]_              |        | |ESLint|          |

docs/index.rst

@@ -169,7 +169,7 @@ Problems Solved
 +-----------+------------+------------+------------+------------+------------+------------+
 |:prob:`21` |            |            |            |            |:py-d:`0021`|            |
 +-----------+------------+------------+------------+------------+------------+------------+
-|:prob:`22` |:c-i:`0022` |            |            |            |:py-d:`0022`|:rs-d:`0022`|
+|:prob:`22` |:c-i:`0022` |            |            |:js-d:`0022`|:py-d:`0022`|:rs-d:`0022`|
 +-----------+------------+------------+------------+------------+------------+------------+
 |:prob:`23` |            |            |            |            |:py-d:`0023`|            |
 +-----------+------------+------------+------------+------------+------------+------------+

docs/javascript/p0022.rst

@@ -0,0 +1,18 @@
+JavaScript Implementation of Problem 22
+=======================================
+
+View source code :source:`javascript/src/p0022.js`
+
+Includes
+--------
+
+- `utils <./utils.html>`_
+
+Problem Solution
+----------------
+
+.. js:autofunction:: p0022
+
+.. literalinclude:: ../../javascript/src/p0022.js
+   :language: javascript
+   :linenos:

javascript/euler.test.js

@@ -29,6 +29,7 @@ const answers = {
     14: [require('./src/p0014.js'), false, 837799],
     15: [require('./src/p0015.js'), false, 137846528820],
     17: [require('./src/p0017.js'), false, 21124],
+    22: [require('./src/p0022.js'), false, 871198282],
     34: [require('./src/p0034.js'), false, 40730],
     76: [require('./src/p0076.js'), true, 190569291],
     836: [require('./src/p0836.js'), false, 'aprilfoolsjoke'],

javascript/src/p0022.js

@@ -0,0 +1,34 @@
+/**
+ * Project Euler Problem 22
+ *
+ *
+ * Problem:
+ *
+ * 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?
+ *
+ * @return {number}
+ */
+exports.p0022 = function() {
+    const contents = require('./lib/utils.js').get_data_file('p0022_names.txt');
+    let names = contents.replaceAll('"', '').split(',');
+    names.sort();
+    let sum = 0;
+    for (let i = 0; i < names.length; i += 1) {
+        let quantity = 0;
+        for (let j = 0; j < names[i].length; j += 1) {
+            quantity += names[i].charCodeAt(j) & 0x3F;
+        }
+        sum += quantity * (i + 1);
+    }
+    return sum;
+};