JavaScript Control Structures Quiz Latest Update Graded A+

JavaScript Control Structures Quiz Latest Update Graded A+ Can you use a loop inside another loop? Yes, this is called a nested loop. How do you execute a block of code at least once before checking a condition? By using a `do...while` loop. What is the main difference between a `do...while` loop and a `while` loop? A `do...while` loop executes at least once before checking the condition, while a `while` loop checks the condition first. How do you combine multiple conditions in an `if` statement? Using logical operators like `&&` (AND) and `||` (OR). How do you stop a function from executing further? By using the `return` statement. 2 What is short-circuit evaluation in JavaScript? It is when logical operators stop evaluating as soon as the result is determined. What happens if a `return` statement is used in a loop? It immediately exits the function containing the loop. Can a `switch` statement work with string values? Yes, a `switch` statement can compare string values. How do you prevent a loop from running forever? By ensuring the loop condition eventually becomes false. How can you iterate through an array without using a loop? By using array methods like `.forEach()`, `.map()`, or `.reduce()`. What happens if you use `break` inside an `if` statement within a loop? It stops the loop entirely if the condition inside `if` is met. 3 How do you execute different code blocks based on multiple conditions efficiently? By using a `switch` statement instead of multiple `if-else` statements. What is a control structure in JavaScript? A control structure is a programming construct that controls the flow of execution in a JavaScript program. How do you write a simple `if` statement in JavaScript? `if (condition) { code to execute }` What does an `else` statement do in JavaScript? It executes an alternative block of code if the `if` condition is false. How do you execute multiple conditions in an `if` statement? Using `else if` between `if` and `else`. What is the difference between `==` and `===` in a conditional statement? `==` checks for value equality, while `===` checks for both value and type equality. 4 What is the purpose of a `switch` statement? A `switch` statement is used to evaluate multiple conditions and execute the corresponding case. How do you exit a `switch` case after execution? By using the `break` statement. What happens if you forget to use `break` in a `switch` statement? The code execution continues to the next case, causing unintended behavior. What is a ternary operator in JavaScript? It is a shorthand for `if-else` written as `condition ? trueResult : falseResult`. How do you write a loop that executes as long as a condition is true? Using a `while` loop: `while (condition) { code to execute }`. What is the difference between a `for` loop