sulution

.github/workflows/test.yml-template

@@ -0,0 +1,23 @@
+name: Test
+
+on:
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [20.x]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: npm install
+    - run: npm test

package.json

@@ -18,7 +18,7 @@
   "license": "GPL-3.0",
   "devDependencies": {
     "@mate-academy/eslint-config": "latest",
-    "@mate-academy/scripts": "^1.8.6",
+    "@mate-academy/scripts": "^1.9.12",
     "eslint": "^8.57.0",
     "eslint-plugin-jest": "^28.6.0",
     "eslint-plugin-node": "^11.1.0",

src/app.js

@@ -1,3 +1,22 @@
+/* eslint-disable no-console */
 'use strict';
 
-// Write your code here
+const readline = require('readline');
+const { generateRandomNumber } = require('./modules/generateRandomNumber');
+const { checkIsValidUserInput } = require('./modules/checkIsValidUserInput');
+const { getBullsAndCows } = require('./modules/getBullsAndCows');
+
+const terminal = readline.createInterface(process.stdin, process.stdout);
+
+terminal.question('Please quess the number', (number) => {
+  const randomNum = generateRandomNumber();
+
+  if (!checkIsValidUserInput(number)) {
+    console.log('your input do not valid');
+    terminal.close();
+  }
+
+  console.log(getBullsAndCows(number, randomNum));
+
+  terminal.close();
+});

src/modules/checkIsValidUserInput.js

@@ -9,7 +9,20 @@
  * @return {boolean} - True if the user input is valid, false otherwise
  */
 function checkIsValidUserInput(userInput) {
-  /* Write your code here */
+  if (userInput.startsWith('0')) {
+    return false;
+  }
+
+  if (userInput.length !== 4) {
+    return false;
+  }
+
+  const uniqueValues = new Set(userInput.split(''));
+
+  return (
+    Array.from(uniqueValues.values()).filter((i) => !Number.isNaN(Number(i)))
+      .length === 4
+  );
 }
 
 module.exports = {

src/modules/generateRandomNumber.js

@@ -7,7 +7,23 @@
  * @return {number} A random 4-digit number
  */
 function generateRandomNumber() {
-  /* Write your code here */
+  const randomNumbers = [];
+  const digits = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
+
+  while (randomNumbers.length < 4) {
+    let index;
+    const randomNumber = Math.random() * (digits.length - 1);
+
+    if (!randomNumbers.length) {
+      index = Math.ceil(randomNumber);
+    } else {
+      index = Math.floor(randomNumber);
+    }
+
+    randomNumbers.push(digits.splice(index, 1));
+  }
+
+  return Number(randomNumbers.join(''));
 }
 
 module.exports = {

src/modules/getBullsAndCows.js

@@ -13,7 +13,25 @@
  * Example: { bulls: 1, cows: 2 }
  */
 function getBullsAndCows(userInput, numberToGuess) {
-  /* Write your code here */
+  const result = { bulls: 0, cows: 0 };
+  const userInputArr = String(userInput).split('');
+  const numberToGuessArr = String(numberToGuess).split('');
+
+  for (let i = 0; i < 4; i++) {
+    const userNum = userInputArr[i];
+    const guessNum = numberToGuessArr[i];
+
+    if (userNum === guessNum) {
+      result.bulls++;
+      continue;
+    }
+
+    if (numberToGuessArr.includes(userNum)) {
+      result.cows++;
+    }
+  }
+
+  return result;
 }
 
 module.exports = {