Quiz: Create a Smart Button
Explore your understanding of JavaScript logic and variables by completing a quiz that challenges you to create a smart button responsive to user actions. This practice reinforces your knowledge before you build a mini-project applying these concepts in real scenarios.
We'll cover the following...
We'll cover the following...
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Technical Quiz
1.
Which line of code will correctly respond when a light is ON?
let lightOn = true;
document.getElementById("switch").addEventListener("click", function() {
// Which of the following lines correctly checks if the light is ON?
// A, B, C, or D?
});
A.
if ("true") { alert("Light is on!"); }
B.
if (lightOn) { alert("Light is on!"); }
C.
if (lightOn === "true") { alert("Light is on!"); }
D.
if (true) { alert("Light is on!"); }
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