day 1, with javascript

2023/01/benchmark.js

@@ -0,0 +1,32 @@
+import fs from 'fs-extra';
+import { parse } from 'yaml';
+import { Bench } from 'tinybench';
+import assert from 'assert';
+
+import { solution_1 } from './part1.js';
+import { solution_2 } from './part2.js';
+
+const input = fs.readFileSync('./input',{ encoding: 'utf8'});
+const solutions = parse( fs.readFileSync('./solutions.yml',{encoding:'utf8'}));
+
+const bench = new Bench({time: 10000});
+
+bench.add( '1', () => {
+    assert.equal(solution_1(input),solutions[1])
+})
+.add( '2', () => {
+    assert.equal(solution_2(input),solutions[2])
+});
+
+await bench.run();
+
+bench.tasks.forEach( ({result,name}) => {
+    console.log(JSON.stringify({
+        day : 1,
+        year : 2023,
+        language: 'javascript',
+        part: name,
+        timestamp: new Date().toISOString(),
+        time: result.mean / 1000
+    }));
+})

2023/01/benchmark.test.js

@@ -0,0 +1,13 @@
+import { bench, expect } from 'vitest';
+import { readFileSync } from 'fs-extra';
+import { parse } from 'yaml';
+
+import { solution_1 } from './part1.js';
+
+const input = readFileSync('./input',{ encoding: 'utf8'});
+const solutions = parse( readFileSync('./solutions.yml',{encoding:'utf8'}));
+
+bench( 'part 1', () => {
+    expect(solution_1(input)).toBe(solutions[1])
+});
+

2023/01/part1.js

@@ -0,0 +1,16 @@
+import * as R from 'remeda';
+
+
+export const extract_number = (line) => {
+    const n = line.match(/(\d)/g);
+    return parseInt(
+        n[0] + n[n.length-1]
+    );
+}
+
+export const solution_1 = R.createPipe(
+        i => i.split("\n"),
+        R.compact,
+        R.map(extract_number),
+        R.sumBy(R.identity)
+    );

2023/01/part2.js

@@ -0,0 +1,32 @@
+import * as R from 'remeda';
+
+import { extract_number } from './part1.js';
+
+const spelled = {
+    'one'   : 1,
+    'two'   : 2,
+    'three' : 3,
+    'four'  : 4,
+    'five'  : 5,
+    'six'   : 6,
+    'seven' : 7,
+    'eight' : 8,
+    'nine'  : 9,
+};
+
+const resolve_spelled_numbers = (line) => {
+    const re = Object.keys(spelled).join('|') + '|\\d';
+
+    const  first  = line.match( RegExp( `^.*?(${re})`) )[1];
+    const  last  = line.match( RegExp( `^.*(${re})`) )[1];
+
+    return [ first, last ].map( n => spelled[n] ?? n ).join('');
+}
+
+export const solution_2 = R.createPipe(
+    i => i.split("\n"),
+    R.compact,
+    R.map(resolve_spelled_numbers),
+    R.map(extract_number),
+    R.sumBy(R.identity),
+);

2023/01/solutions.yml

@@ -0,0 +1,2 @@
+1: 56397
+2: 55701

2023/01/test.js

@@ -0,0 +1,16 @@
+import { test, expect } from 'vitest';
+import { readFileSync } from 'fs-extra';
+import { parse } from 'yaml';
+
+import { solution_1 } from './part1.js';
+import { solution_2 } from './part2.js';
+
+const input = readFileSync('./input',{ encoding: 'utf8'});
+const solutions = parse( readFileSync('./solutions.yml',{encoding:'utf8'}));
+
+test( 'part 1', () => {
+    expect( solution_1(input)).toBe(solutions['1']);
+})
+test( 'part 2', () => {
+    expect( solution_2(input)).toBe(solutions['2']);
+})

2023/benchmark.json

@@ -1,2 +1,4 @@
 {"language":"perl","time":0.00189813978688821,"part":1,"day":1,"year":2023,"timestamp":"2023-12-01T17:35:46"}
 {"language":"perl","part":2,"time":0.00721379310344828,"day":1,"year":2023,"timestamp":"2023-12-01T17:35:58"}
+{"day":1,"year":2023,"language":"javascript","part":"1","timestamp":"2023-12-01T20:55:40.986Z","time":0.0007267522645031297}
+{"day":1,"year":2023,"language":"javascript","part":"2","timestamp":"2023-12-01T20:55:40.989Z","time":0.004363576172638605}

2023/package.json

@@ -1,5 +1,6 @@
 {
   "name": "2023",
+  "type": "module",
   "version": "1.0.0",
   "description": "",
   "main": "vitest.config.js",
@@ -10,6 +11,9 @@
   "author": "Yanick Champoux <yanick@babyl.ca> (http://techblog.babyl.ca/)",
   "license": "ISC",
   "dependencies": {
-    "vitest": "^0.34.6"
+    "fs-extra": "^11.2.0",
+    "tinybench": "^2.5.1",
+    "vitest": "^0.34.6",
+    "yaml": "^2.3.4"
   }
 }