QSpiders Engineering Student Interview Questions and Answers

1 hour test based on knowledege

Quantitative Aptitude basic questions, Logical and Verbal

Q1. What is the concept of hoisting in javascript programming?
Ans. 
Hoisting in JavaScript is the behavior of moving variable and function declarations to the top of their containing scope during compilation.
• Variables declared with 'var' are hoisted, but their initialization remains in place. Example: console.log(x); var x = 5; // undefined

• Function declarations are fully hoisted, allowing them to be called before their definition. Example: greet(); function greet() { console.log('Hello...read more
Answered by AI
Add your answer
Q2. What is the difference between let, var, and const in JavaScript?
Ans. 
let, var, and const are used for variable declaration in JavaScript, differing in scope, hoisting, and mutability.
• var: Function-scoped or globally scoped; can be redeclared and updated.

• Example: var x = 10; var x = 20; // x is now 20

• let: Block-scoped; cannot be redeclared but can be updated.

• Example: let y = 10; y = 20; // y is now 20; let y = 30; // Error

• const: Block-scoped; cannot be redeclared or updated; must be init...read more
Answered by AI
Add your answer

I'm trusting me I will pass this interview

Q1. How do you think you are fit for the role ?
Add your answer

Q1. What is your expectations from the job ?
Add your answer