Submission

answer.md

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+About You
+
+1. Introduce yourself.
+I'm Hiran Raj, a dedicated Software Engineer from Chengannur, Alappuzha. I specialize in building and deploying web applications with a strong focus on backend development. I'm a BCA graduate who is passionate about creating clean, maintainable code and continuously expanding my technical knowledge to stay at the forefront of software development innovation.
+
+2. Do you own a personal computer?
+Yes, I own a personal computer that I use for both work and personal projects.
+
+3. Describe your development environment. (Your OS, IDE, Editor and Config manager if any)
+My development environment consists of:
+
+Hardware: HP Pavilion
+OS: Windows 10 as my primary operating system
+IDE/Editor:
+
+Visual Studio Code as my primary editor with extensions for:
+
+JavaScript/TypeScript development
+React/Redux
+Tailwind CSS IntelliSense
+ESLint for code quality
+Prettier for code formatting
+Git integration
+
+
+Version Control: Git with GitHub for repositories
+Configuration Management:
+
+Docker for containerization and consistent development environments
+nvm for Node.js version management
+AWS CLI for cloud resource management
+
+
+Package Managers: npm
+API Testing: Postman for API testing and documentation
+Database Tools: MongoDB Compass, pgAdmin for database management
+
+
+Social Profile
+1. Your StackOverflow Profile url.
+https://stackoverflow.com/users/30493273/hiran-raj
+2. Personal website, blog or something you want us to see.
+
+GitHub Profile: https://github.com/Hiran-2001
+LinkedIn: https://www.linkedin.com/in/hiran-raj/
+Resume: https://docs.google.com/document/d/10lMr9inuePstTwHrW9buhj3SjoJ4owhGQlWfX9l04O4/edit?tab=t.0
+
+
+The real stuff.
+1. Which all programming languages are installed on your system.
+The following programming languages are installed on my system:
+
+JavaScript/Node.js (v20.10.0)
+TypeScript (v5.0.4)
+Python (v3.12.4)
+Java (OpenJDK 19.0.1)
+Go (go1.24.2)
+
+
+2. Write a function that takes a number and returns a list of its digits in an array ?
+
+javascript
+ * Takes a number and returns an array of its digits
+
+const getDigits = (num) => {
+  const absNum = Math.abs(num); // Handle negative numbers
+  return absNum.toString().split('').map(digit => parseInt(digit));
+};
+
+// Test cases
+console.log(getDigits(5236));  // [5, 2, 3, 6]
+console.log(getDigits(0));    // [0]
+console.log(getDigits(-5236)); // [5, 2, 3, 6]
+
+
+3. Remove duplicates of an array and returning an array of only unique elements ?
+
+javascript
+ * Takes an Array with duplicate numbers and removes duplicates from the array
+
+const getUniqueElements = (arr) => {
+  return [...new Set(arr)];
+};
+
+//Test cases
+console.log(getUniqueElements([1, 2, 2, 3, 4, 4, 5])); //Output [1, 2, 3, 4, 5]
+console.log(getUniqueElements(['a', 'b', 'a', 'c', 'b'])) // Output // ['a', 'b', 'c'];
+
+
+4. Write function that translates a text to Pig Latin and back. English is translated to Pig Latin by taking the first letter of every word, moving it to the end of the word and adding ‘ay’. “The quick brown fox” becomes “Hetay uickqay rownbay oxfay”.
+
+javascript
+
+ function toPigLatin(text) {
+    const words = text.split(' ');
+    const pigLatinWords = [];
+
+    for (let i = 0; i < words.length; i++) {
+        const word = words[i];
+
+        if (word.length <= 1) {
+            pigLatinWords.push(word);
+            continue;
+        }
+
+        const isCapitalized = word[0] === word[0].toUpperCase();
+
+        const pigLatinWord = word.slice(1) + word[0] + 'ay';
+
+        if (isCapitalized) {
+            pigLatinWords.push(
+                pigLatinWord[0].toUpperCase() +
+                pigLatinWord.slice(1).toLowerCase()
+            );
+        } else {
+            pigLatinWords.push(pigLatinWord.toLowerCase());
+        }
+    }
+
+    return pigLatinWords.join(' ');
+}
+
+function toEnglish(text) {
+    const words = text.split(' ');
+
+    const englishWords = [];
+
+    for (let i = 0; i < words.length; i++) {
+        const word = words[i];
+
+        if (word.length <= 3) {
+            englishWords.push(word);
+            continue;
+        }
+
+        if (!word.toLowerCase().endsWith('ay')) {
+            englishWords.push(word);
+            continue;
+        }
+
+        const isCapitalized = word[0] === word[0].toUpperCase();
+
+        const englishWord = word[word.length - 3] + 
+            word.slice(0, word.length - 3);
+
+        if (isCapitalized) {
+            englishWords.push(
+                englishWord[0].toUpperCase() + 
+                englishWord.slice(1).toLowerCase()
+            );
+        } else {
+            englishWords.push(englishWord.toLowerCase());
+        }
+    }
+
+    return englishWords.join(' ');
+}
+
+console.log(toPigLatin("The quick brown fox")); // Output: "Hetay uickqay rownbay oxfay"
+
+console.log(toEnglish("Hetay uickqay rownbay oxfay")); // Output: "The quick brown fox"
+
+
+5. Write a function that rotates a list by k elements. For example [1,2,3,4,5,6] rotated by 2 becomes [3,4,5,6,1,2]. Try     solving this without creating a copy of the list. How many swap or move operations do you need?
+
+javascript
+  * Rotates an array by k elements in-place
+
+const rotateInPlace = (arr, k) => {
+  const n = arr.length;
+  k = k % n;
+
+
+  const reverse = (start, end) => {
+    while (start < end) {
+      [arr[start], arr[end]] = [arr[end], arr[start]]; 
+      start++;
+      end--;
+    }
+  };
+
+  reverse(0, k - 1);   
+  reverse(k, n - 1);   
+  reverse(0, n - 1);    
+};
+
+const arr = [1, 2, 3, 4, 5];
+rotateInPlace(arr, 3);
+console.log(arr); // Output: [4, 5, 1, 2, 3]