Question: What is a JavaScript constructor function used for?
Answer:
A constructor function in JavaScript is used to create multiple objects with similar properties and methods.
MCQ: What is a JavaScript constructor function used for?
Correct Answer:
A. To perform mathematical operations
Explanation:
A constructor function in JavaScript is used to create multiple objects with similar properties and methods.
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Related Questions
- 1. Which keyword is used to create a new instance of an object in JavaScript?
- 2. What is the result of the following JavaScript code? function Person(name) { this.name = name;}var person1 = new Person("Alice");var person2 = new Person("Bob");console.log(person1.name);
- 3. What is a JavaScript method?
- 4. How do you call a method of a JavaScript object?
- 5. What is a JavaScript prototype?
- 6. How do you add a method to a JavaScript object's prototype?
- 7. What is a closure in JavaScript?
- 8. What is the result of the following JavaScript code? function outer() { var x = 10;function inner() {console.log(x); }return inner;}var closure = outer();closure();
- 9. What is the purpose of the call() method in JavaScript?
- 10. What will be logged to the console in the following JavaScript code? var i = 0; do { console.log(i); i++;} while (i < 5);
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