AlexDjangoX

requirement-sets/1-reading-writing-files/answer.txt

@@ -0,0 +1 @@
+count: 3

requirement-sets/1-reading-writing-files/src/index.js

@@ -1 +1,23 @@
-// run the program
+const fs = require('fs');
+
+const data = fs.readFileSync('../input.txt');
+const dataArray = data.toString().toUpperCase().trim().split('\r\n');
+console.log(dataArray);
+
+function checkPosition(data) {
+  let count = 0;
+  dataArray.forEach((el) => {
+    const counts = { W: 0, E: 0, N: 0, S: 0 };
+    el.split('').forEach((letter) => (counts[letter] += 1));
+    if (counts.W === counts.E && counts.S === counts.N) count += 1;
+  });
+  const output = `count: ${count}`;
+  fs.writeFile('../answer.txt', output, (err) => {
+    if (err) {
+      console.error(err);
+    }
+  });
+  return count;
+}
+
+console.log(checkPosition(data));

requirement-sets/2-coding-tests/.eslintrc.js

@@ -2,14 +2,12 @@ module.exports = {
   env: {
     commonjs: true,
     es2021: true,
-    node: true
+    node: true,
+    jasmine: true,
   },
-  extends: [
-    'standard'
-  ],
+  extends: ['standard'],
   parserOptions: {
-    ecmaVersion: 'latest'
+    ecmaVersion: 'latest',
   },
-  rules: {
-  }
-}
+  rules: {},
+};

requirement-sets/2-coding-tests/spec/longest-sequence.spec.js

@@ -0,0 +1,12 @@
+const longestSequence = require('../src/longest-sequence.js')
+
+describe('Longest sequence', () => {
+  it('sequence 1', () => {
+    expect(longestSequence('gggttrfdesdcxzzzzzzzzzz')).toEqual({ z: 10 })
+  })
+  it('sequence 2', () => {
+    expect(longestSequence('rrftghuuytredswwsdxxxxxxxxxxgftrgr')).toEqual({
+      x: 10
+    })
+  })
+})

requirement-sets/2-coding-tests/src/longest-sequence.js

@@ -0,0 +1,30 @@
+const longestSequence = (str) => {
+  let longestSequence = { a: 0 }
+  let currentSequence = {}
+
+  for (let i = 0; i < str.length - 1; i++) {
+    const char = str[i].toLowerCase()
+    const nextChar = str[i + 1].toLowerCase()
+
+    if (!currentSequence[char]) {
+      currentSequence = {}
+      currentSequence[char] = 1
+    }
+
+    if (char === nextChar) {
+      currentSequence[char] += 1
+    }
+    if (Object.values(currentSequence)[0] > Object.values(longestSequence)[0]) {
+      longestSequence = { ...currentSequence }
+    } else if (
+      Object.values(currentSequence)[0] === Object.values(longestSequence)[0]
+    ) {
+      if (Object.keys(currentSequence)[0] < Object.keys(longestSequence)[0]) {
+        longestSequence = { ...currentSequence }
+      }
+    }
+  }
+  return longestSequence
+}
+
+module.exports = longestSequence

requirement-sets/3-test-js-grad/src/01-count-major-versions-above-10/index.js

@@ -12,8 +12,19 @@ GET https://api.npms.io/v2/search/suggestions?q=react
 
 */
 
+const axios = require('axios');
+
 module.exports = async function countMajorVersionsAbove10() {
-  // TODO
+  try {
+    const { data } = await axios.get(
+      'https://api.npms.io/v2/search/suggestions?q=react'
+    );
+    const answer = data
+      .map((el) => el.package.version.split('.')[0])
+      .filter((el) => Number(el) >= 10).length;
 
-  return number
+    return answer;
+  } catch (err) {
+    console.log(err);
+  }
 };

requirement-sets/3-test-js-grad/src/02-oldest-package-name/index.js

@@ -10,9 +10,22 @@ GET https://api.npms.io/v2/search/suggestions?q=react
 *  the "name" of the package that has the oldest "date" value
 
 */
+const axios = require('axios');
 
 module.exports = async function oldestPackageName() {
-  // TODO
+  try {
+    const { data } = await axios.get(
+      'https://api.npms.io/v2/search/suggestions?q=react'
+    );
 
-  return name
+    const name = data
+      .map((el) => [el.package.date, el.package.name])
+      .reduce((previous, current) => {
+        return previous[0] < current[0] ? previous : current;
+      })[1];
+
+    return name;
+  } catch (err) {
+    console.log(err);
+  }
 };

requirement-sets/3-test-js-grad/src/03-organise-maintainers/index.js

@@ -2,6 +2,10 @@
 
 * Make the following HTTP request with either axios or node-fetch:
 
+/*
+
+* Make the following HTTP request with either axios or node-fetch:
+
 GET https://api.npms.io/v2/search/suggestions?q=react
 
 ******
@@ -23,8 +27,32 @@ GET https://api.npms.io/v2/search/suggestions?q=react
 
 */
 
-module.exports = async function organiseMaintainers() {
-  // TODO
+const axios = require('axios');
 
-  return maintainers
+module.exports = async function organiseMaintainers() {
+  let maintainers = [];
+
+  const { data } = await axios.get(
+    'https://api.npms.io/v2/search/suggestions?q=react'
+  );
+
+  data.forEach((dep) => {
+    dep.package.maintainers.forEach((maintainer) => {
+      const record = maintainers.find((obj) => {
+        return obj.username === maintainer.username;
+      });
+      if (!record) {
+        const newRecord = {
+          username: maintainer.username,
+          packageNames: [dep.package.name],
+        };
+        maintainers.push(newRecord);
+      } else {
+        record.packageNames.push(dep.package.name);
+      }
+    });
+  });
+
+  // console.log('DATA : ', JSON.stringify(data[0], null, 2));
+  return maintainers;
 };