Lepide Software React Js Frontend Developer Interview Questions and Answers

Q1. What is the difference between on-page seo and off-page seo?
Ans. 
On-page SEO refers to optimizing elements on a website to improve search engine rankings, while off-page SEO involves external factors like backlinks and social signals.
• On-page SEO includes optimizing meta tags, headings, content, and images on a website.

• Off-page SEO involves building backlinks from other websites, social media shares, and online reputation management.

• Examples of on-page SEO techniques are keyword opti...read more
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Q2. On-page seo is optimizing within the
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Q1. What is the difference between ==and === in JavaScript?
Ans. 
The difference between == and === in JavaScript is that == compares only the values, while === compares both values and types.
• The == operator compares two variables by converting them to the same type before making the comparison.

• The === operator compares two variables without type conversion, so they must be of the same type to be considered equal.

• Example: 1 == '1' will return true, but 1 === '1' will return false.
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Q2. ==compare values with type coerion=== is that
Ans. 
Yes, the question is asking about comparing values with type coercion in JavaScript.
• In JavaScript, the == operator compares values with type coercion, meaning it will convert the operands to the same type before making the comparison.

• For example, 1 == '1' will return true because the string '1' is converted to a number before comparison.

• However, 1 === '1' will return false because the strict equality operator (===) doe
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Quantitative aptitude, logical apptiude,

Q1. Data structure and algorithms
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Q2. Programming concepts
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Q1. Custom hook implementation
Ans. 
Custom hooks in React are reusable functions that contain logic shared between components.
• Custom hooks start with 'use' keyword (e.g. useState, useEffect)

• They can be used to share logic like fetching data, managing state, or subscribing to events

• Example: Custom hook for fetching data from an API can be used in multiple components
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Q1. Javascript basic questions, React Native interview questions
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It was Either Aptitude Test/ JS puzzle round

Creating a simple billing management system using ReactJS

Q1. Asked about DS, About Me
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Q1. Just asked about what kind of person you are and more about you
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Q1. Laggy issues in animation. Security issues. Code Optmizaton. Function and class component Redux
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