Hard
An interface can contain :
Author: Eric HostaleryStatus: PublishedQuestion passed 1416 times
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14
Is the following code valid?
class Person {
constructor(name, age) {
this.name = name;
this.age = age;
}
}
const person = new Person('John', 20);
console.log(person.name);
console.log(person.age);5
Is the following code valid?
class Person {
constructor(name, age) {
this.name = name;
this.age = age;
}
}
const person = new Person('John', 20);
console.log(person.name);
console.log(person.age);4
Which design pattern allows to dynamically add responsibilities to an object?9
You need to develop a class for which there should be only one instance throughout your application. Which design pattern should you use for this?4
Can an interface inherit from another interface?4
Is the following code valid?
class Person {
constructor(name, age) {
this.name = name;
this.age = age;
}
}
const person = new Person('John', 20);
console.log(person.name);
console.log(person.age);8
Can we extend an abstract class in Java?