feat(2022): add day 1 in javascript

Author: believer

README.md

@@ -8,18 +8,19 @@ Advent of Code is an online event created by Eric Wastl. Each year, starting on
 
 ## Years
 
-| Year | Language | Main solution | Link                   |
-| ---- | -------- | ------------- | ---------------------- |
-| 2022 | Rust     | X             | [Link](/rust/2022)     |
-| 2021 | Python   | X             | [Link](/python/2021)   |
-| 2021 | Rust     |               | [Link](/rust/2021)     |
-| 2020 | Rust     | X             | [Link](/rust/2020)     |
-| 2020 | ReScript |               | [Link](/rescript/2020) |
-| 2019 | ReScript | X             | [Link](/rescript/2019) |
-| 2019 | ReasonML |               | [Link](/reasonml/2019) |
-| 2019 | Rust     |               | [Link](/rust/2019)     |
-| 2018 | ReScript | X             | [Link](/rescript/2018) |
-| 2017 | Rust     | X             | [Link](/rust/2017)     |
-| 2016 | Rust     | X             | [Link](/rust/2016)     |
-| 2015 | ReScript | X             | [Link](/rescript/2015) |
-| 2015 | Rust     |               | [Link](/rust/2015)     |
+| Year | Language   | Main solution | Link                     |
+| ---- | ---------- | ------------- | ------------------------ |
+| 2022 | Rust       | X             | [Link](/rust/2022)       |
+| 2022 | JavaScript |               | [Link](/javascript/2022) |
+| 2021 | Python     | X             | [Link](/python/2021)     |
+| 2021 | Rust       |               | [Link](/rust/2021)       |
+| 2020 | Rust       | X             | [Link](/rust/2020)       |
+| 2020 | ReScript   |               | [Link](/rescript/2020)   |
+| 2019 | ReScript   | X             | [Link](/rescript/2019)   |
+| 2019 | ReasonML   |               | [Link](/reasonml/2019)   |
+| 2019 | Rust       |               | [Link](/rust/2019)       |
+| 2018 | ReScript   | X             | [Link](/rescript/2018)   |
+| 2017 | Rust       | X             | [Link](/rust/2017)       |
+| 2016 | Rust       | X             | [Link](/rust/2016)       |
+| 2015 | ReScript   | X             | [Link](/rescript/2015)   |
+| 2015 | Rust       |               | [Link](/rust/2015)       |

javascript/2022/.prettierrc

@@ -0,0 +1,11 @@
+{
+  "arrowParens": "avoid",
+  "printWidth": 80,
+  "tabWidth": 2,
+  "useTabs": false,
+  "semi": false,
+  "singleQuote": true,
+  "trailingComma": "es5",
+  "bracketSpacing": true,
+  "bracketSameLine": false
+}

javascript/2022/README.md

@@ -0,0 +1,3 @@
+# Advent of Code 2022
+
+Thought I'd do some in JavaScript for fun.

javascript/2022/day01.mjs

@@ -0,0 +1,21 @@
+import { sum, readInput, sortDESC } from './utils.mjs'
+
+const input = await readInput('01')
+
+const parsedInput = input
+  .split('\n\n')
+  .flatMap(group =>
+    group
+      .split('\n')
+      .filter(l => l)
+      .map(Number)
+      .reduce(sum, 0)
+  )
+  .slice()
+  .sort(sortDESC)
+
+const part1 = parsedInput.at(0)
+const part2 = parsedInput.slice(0, 3).reduce(sum, 0)
+
+console.log('Part 1:', part1)
+console.log('Part 2:', part2)