Carrefour SDE (Software Development Engineer) Interview Questions and Answers

Q1. Orages spoling question
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Q1. Prototypical Inheritance
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Q2. Why we can't use arrow function in constructor
Ans. 
Arrow functions do not have their own 'this' value, which is required in constructors.
• Arrow functions do not have a 'this' binding, so 'this' will refer to the parent scope.

• Constructors require 'this' to refer to the newly created object.

• Using arrow functions in constructors can lead to unexpected behavior and errors.
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Q3. Explain details about CORS
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CORS stands for Cross-Origin Resource Sharing and is a security feature implemented in web browsers.
• CORS allows web servers to specify which origins are allowed to access their resources.

• It is used to prevent unauthorized access to resources on a different domain.

• CORS is implemented using HTTP headers such as Access-Control-Allow-Origin and Access-Control-Allow-Methods.

• It is important to properly configure CORS to avoi...read more
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Q4. Explain with an example about Lexical Scoping
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Lexical scoping is a way of defining variable scope based on where they are declared in the code.
• Variables declared inside a function have local scope and are not accessible outside the function.

• Variables declared outside a function have global scope and can be accessed from anywhere in the code.

• Nested functions can access variables declared in their parent function.

• Example: function outer() { let x = 10; function inne...read more
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Q5. Advantages of arrow function
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Arrow functions have concise syntax, implicit return, and lexical this binding.
• Shorter syntax than traditional function expressions

• Implicit return of a single expression

• Lexical this binding, avoiding the need for .bind() or self = this

• Example: const double = (num) => num * 2;

• Example: const names = ['Alice', 'Bob', 'Charlie']; const nameLengths = names.map(name => name.length);
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Q1. What are your salary expectations?
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Q2. What is your family background?
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Q3. Tell me about yourself.
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Q1. Where do you see yourself in 5 years?
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Q2. What are your salary expectations?
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One topic and discussed on the same

Q1. Tell me about your self
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Q2. Why you joining in reliance
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Q1. First of all HR we will connect Each other.
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Q2. After that he will give me the company introduction of the company.
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Q3. Hr will discuss to conduct their interview. discuss for the timing
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Q4. Hr relted to question for the relince
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