A developer is implementing a number-guessing game. The player has unlimited guesses, but the game should end when the player guesses correctly. The developer wants to use a loop that checks the guess at the end of each iteration. Which loop structure is most appropriate?

let guess; while (guess != secret) { guess = prompt('Enter your guess:'); }

let guess = prompt('Enter your guess:'); while (guess != secret) { guess = prompt('Enter your guess:'); }

while (true) { let guess = prompt('Enter your guess:'); if (guess == secret) break; }

let guess; do { guess = prompt('Enter your guess:'); } while (guess != secret);

LPI Web Development Essentials

Domain 4Objective 3

034.3 JavaScript Control Structures and Functions (weight: 4) WEB-DEVELOPMENT-ESSENTIALS Practice Questions (Page 2)

Part of the 034 JavaScript Programming domain, which makes up ~16% of our current practice bank. Linux Professional Institute does not publish an official question count, but from its 60-minute exam (~25–40 total, ~4–6 in this domain), expect 1–2 from this objective — we provide 22 practice questions to prepare you well beyond it. (estimate)

22questions here

5free pages

13concepts

Questions 6–10

6foundation · easy
What is the scope of a variable declared with let inside a block?
Select an answer first
7foundation · easy
What is the value of result after the following code runs? function add(a, b) { return a + b; } let result = add(5);
Select an answer first
8foundation · easy
What is the output of the following switch statement? let color = "red"; switch (color) { case "blue": console.log("B"); break; case "red": console.log("R"); break; default: console.log("D"); }
Select an answer first
9expert · medium
A developer is implementing a number-guessing game. The player has unlimited guesses, but the game should end when the player guesses correctly. The developer wants to use a loop that checks the guess at the end of each iteration. Which loop structure is most appropriate?
Select an answer first
10foundation · easy
What is the output of the following code? for (let i = 0; i < 5; i++) { if (i === 2) { continue; } console.log(i); }
Select an answer first

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034.3 JavaScript Control Structures and Functions (weight: 4) WEB-DEVELOPMENT-ESSENTIALS Practice Questions (Page 2)

Questions 6–10

What is the scope of a variable declared with let inside a block?

What is the value of result after the following code runs? function add(a, b) { return a + b; } let result = add(5);

What is the output of the following switch statement? let color = "red"; switch (color) { case "blue": console.log("B"); break; case "red": console.log("R"); break; default: console.log("D"); }

A developer is implementing a number-guessing game. The player has unlimited guesses, but the game should end when the player guesses correctly. The developer wants to use a loop that checks the guess at the end of each iteration. Which loop structure is most appropriate?

What is the output of the following code? for (let i = 0; i < 5; i++) { if (i === 2) { continue; } console.log(i); }

Keep studying — 034 JavaScript Programming