Instructions
- 1. Your final score will reflect your grasp of the concepts—approach each question with precision.
- 2. Thoroughly review each solution before proceeding to ensure full understanding.
- 3. Final results will be available after submission to provide insights into areas for further improvement.
- 4. Maintain academic integrity—plagiarism undermines learning and professional growth.
- 5. Once submitted, responses are final, so ensure you’re confident in your answers.
- 6. These challenges are designed to test practical knowledge; apply your skills as you would in real-world scenarios.
All Problems
Question
Action
What is the scope of a variable declared with var inside a function?
What happens when two variables with the same name are declared in different scopes?
What is the scope of a variable declared using let inside a block?
If a variable is not declared inside any function or block, what is its scope?
Which variable declaration type can cause hoisting issues?
What will be the result of this code? var a = 10; function test() { var a = 20; console.log(a); } test();
What happens if a variable declared with let is accessed before its initialization?
In JavaScript, the this keyword inside a regular function refers to what by default?
What is the scope of a variable declared with const inside a block?
What is the result of the following code? let x = 5; { let x = 10; } console.log(x);