Naviga Senior Developer Interview Questions and Answers

Q1. Solve code snippets
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Q1. Don't remember so I have no
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Q2. I can't remember it
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Q1. I don't know the res
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Q2. I can't remember it
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Medium level questions asked

Simple easy to medium 2 questions asked of string and array

Q1. Tell me about yourself
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Q2. JavaScript like fetch axios and others
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Q1. What is async javascript
Ans. 
Async JavaScript allows for non-blocking code execution, improving performance by handling multiple tasks simultaneously.
• Async JavaScript uses callbacks, promises, and async/await to handle asynchronous operations.

• It allows for tasks like fetching data from a server or updating the UI without blocking the main thread.

• Example: Using setTimeout to simulate async behavior in JavaScript.
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Q2. Do you know wordpress
Ans. 
Yes, I am familiar with WordPress and have experience in developing websites using it.
• I have worked on creating custom themes and plugins for WordPress.

• I am proficient in using WordPress CMS to manage content and customize websites.

• I have experience in optimizing WordPress websites for performance and SEO.

• I am familiar with popular WordPress plugins like Yoast SEO, WooCommerce, and Contact Form 7.
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Asked related to python

Q1. Tell me about yourself
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Q2. Explain the project in resume
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Q1. What's Lazy loading
Ans. 
Lazy loading is a technique used in software development to defer the loading of resources until they are actually needed.
• Lazy loading improves performance by only loading resources when necessary

• It is commonly used in web development to load images or data as the user scrolls down a page

• Lazy loading can also be used in programming languages to load classes or modules on-demand
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Q1. What's Authentication and authorisation in nodejs
Ans. 
Authentication is the process of verifying the identity of a user, while authorization determines what resources a user can access.
• Authentication is the process of verifying the identity of a user.

• Authorization determines what resources a user can access.

• In Node.js, authentication and authorization can be implemented using various libraries and techniques such as Passport.js, JSON Web Tokens (JWT), and role-based acces...read more
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Q1. Difference between string and string builder.
Ans. 
String is immutable, while StringBuilder is mutable and more efficient for concatenating strings.
• String is immutable, meaning once created, its value cannot be changed. StringBuilder is mutable, allowing for modifications without creating new objects.

• String concatenation creates a new string object each time, while StringBuilder modifies the existing object directly.

• StringBuilder is more efficient for concatenating mul...read more
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Q2. What is async and await
Ans. 
Async and await are keywords in JavaScript used to work with asynchronous code.
• Async is used to define a function as asynchronous, allowing it to run in the background without blocking the main thread.

• Await is used to pause the execution of an async function until a Promise is settled, and then resumes the function with the resolved value.

• Async/await is a more readable and cleaner way to write asynchronous code compare...read more
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