publish week 17

2021/w17/README.md

@@ -0,0 +1,32 @@
+# Week 17 challenge
+
+You have joined a team which works on a new programming language. The language is intended to be functional lisp-like.
+So a lot of parenthesis in the syntax.
+
+You pick up the task to write utility for the parser, which will simply validate if in given string the parenthesis are valid.
+E.g. are they wrapping and closing properly.
+
+This function should only look at parenthesis and, thus, ignore any other characters that might be in it.
+
+
+Examples:
+```
+isValid('fn(1, 2, 3)') // returns true
+isValid('!)()()') // return false
+isValid('()') // returns true
+isValid('())') // returns false
+isValid('(()(()))') // returns true
+isValid(')(()(()))') // returns false
+isValid('((777))(((arg)())(...rest))') // returns true
+isValid('((777))((...args)())(9))') // returns false
+
+```
+
+
+## Upload link
+
+[https://forms.gle/N4rY73sULh3prw96A]
+
+
+## Results
+

2021/w17/solutions/solution.js

@@ -0,0 +1,7 @@
+const isValid = (code) => {
+  // your solution here
+
+  return undefined;
+};
+
+module.exports = isValid;

2021/w17/test.js

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+const fs = require("fs");
+const path = require("path");
+const spec = require("./test-cases/spec.json");
+const solutions = fs.readdirSync(path.resolve(__dirname, "solutions"));
+
+describe.each(solutions)("%s", (filename) => {
+  const evaluate = require(path.resolve(__dirname, "solutions", filename));
+  test.each([
+    ['n(1, 2, 3)', true],
+    ['!)()()', false],
+    ['()', true],
+    ['())', false],
+    ['(()(()))', true],
+    [')(()(()))', false],
+    ['((777))(((arg)())(...rest))', true],
+    ['((777))((...args)())(9))', false],
+  ])("%j = %j", (input, result) => {
+    expect(evaluate(input)).toBe(result);
+  });
+
+  test.each(spec.map(({ inputs, result }) => [inputs[0], result]))(
+    "%j = %j",
+    (input, result) => {
+      expect(evaluate(input)).toBe(result);
+    }
+  );
+});

evaluate.js

@@ -9,7 +9,7 @@ const { table } = require('table');
 const humanizeDuration = require('humanize-duration');
 
 // update for challenge you wish to evaluate, what is the tie margin and amount of default runs
-const CHALLENGE = '2021/w16';
+const CHALLENGE = '2021/w17';
 const PERCENT_MARGIN_FOR_TIE = 5;
 const TIMES_TO_EVAL_EACH = parseInt(process.argv[2], 10) || 1000;
 const LOG_PAD = 35;