Wingify Javascript Developer Interview Questions, Process, and Tips

DSA questions on array, strings and linkedlist asked medium level of dsa questions.

Q1. Javascript intervew questions and react.js interview questions.
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Q2. What is difference between == and ===
Ans. 
The '==' operator checks for equality after type coercion, while '===' checks for equality without type coercion.
• The '==' operator compares two values after converting them to a common type.

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

• Example: 1 == '1' will return true because the values are equal after type coercion, but 1 === '1' will return f
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Q3. What is async await
Ans. 
Async await is a feature in JavaScript that allows for asynchronous code to be written in a synchronous manner.
• Async await is built on top of promises and provides a cleaner syntax for handling asynchronous operations.

• It allows you to write asynchronous code that looks like synchronous code, making it easier to read and maintain.

• The 'async' keyword is used to define a function as asynchronous, while the 'await' keyword...read more
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Q4. Tell me about IIFE
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Q5. What is call back hell in javascript
Ans. 
Callback hell refers to the situation where multiple nested callbacks make the code difficult to read and maintain.
• Occurs when multiple asynchronous operations are nested within each other

• Can lead to deeply nested code structure which is hard to follow

• Can be avoided by using promises or async/await
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DSA required of high level so be prepared

Q1. Why do you want to join
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Q2. Tell me about yourself
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