Node Js Interview Coding Questions
Top Node.js Interview Coding Questions
Node Js Interview Coding Questions
In Node.js job interviews, candidates are often asked to solve coding questions that demonstrate their understanding of core concepts such as asynchronous programming, event-driven architecture, and handling callbacks. These questions may involve tasks such as creating a server, implementing file operations, or working with databases. Employers look for candidates who can write efficient and reliable code, understand best practices, and demonstrate problem-solving skills. It is important for candidates to practice coding challenges, understand Node.js fundamentals, and be ready to explain their approach and reasoning during the interview.
To Download Our Brochure: https://www.justacademy.co/download-brochure-for-free
Message us for more information: +91 9987184296
1 - Implement a function to reverse a string in Node.js:
```javascript
function reverseString(str) {
return str.split('').reverse().join('');
}
```
2) Write a program to find the longest word in a sentence in Node.js:
```javascript
function findLongestWord(sentence) {
const words = sentence.split(' ');
let longestWord = ‘’;
words.forEach(word => {
if (word.length > longestWord.length) {
longestWord = word;
}
});
return longestWord;
}
```
3) Create a function to check if a given number is prime in Node.js:
```javascript
function isPrime(num) {
if (num ≤ 1) return false;
if (num === 2) return true;
for (let i = 2; i ≤ Math.sqrt(num); i++) {
To Download Our Brochure: Click Here
Message us for more information: +91 9987184296
if (num % i === 0) return false;
}
return true;
}
```
4) Implement a function to calculate the factorial of a number in Node.js:
```javascript
function factorial(num) {
if (num === 0) return 1;
return num * factorial(num 1);
}
```
5) Write a program to count the number of vowels in a string in Node.js:
```javascript
function countVowels(str) {
const vowels = ['a', ‘e’, ‘i’, ‘o’, ‘u’];
let count = 0;
str.split('').forEach(char => {
if (vowels.includes(char.toLowerCase())) {
count++;
}
});
return count;
}
```
6) Create a function to check if a given string is a palindrome in Node.js:
```javascript
function isPalindrome(str) {
return str === str.split('').reverse().join('');
}
```
7) Implement a program to sort an array of numbers in ascending order in Node.js:
```javascript
function sortNumbers(arr) {
return arr.sort((a, b) => a b);
}
```
8) Write a function to calculate the nth Fibonacci number in Node.js:
```javascript
function fibonacci(n) {
if (n ≤ 1) return n;
return fibonacci(n 1) + fibonacci(n 2);
}
```
9) Create a program to find the sum of all numbers in an array in Node.js:
```javascript
function sumArray(arr) {
return arr.reduce((acc, curr) => acc + curr, 0);
}
```
10) Implement a function to check if two strings are anagrams of each other in Node.js:
```javascript
function areAnagrams(str1, str2) {
return str1.split('').sort().join('') === str2.split('').sort().join('');
}
```
Browse our course links : https://www.justacademy.co/all-courses
To Join our FREE DEMO Session: Click Here
Contact Us for more info:
- Message us on Whatsapp: +91 9987184296
- Email id: info@justacademy.co
Java Automation Testing Interview Questions
Android Application Testing Interview Questions
Difficult Java Interview Questions
