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29 lines
509 B
JavaScript
29 lines
509 B
JavaScript
3 years ago
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class Person {
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constructor(name) {
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this.name = name;
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}
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greet() {
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console.log(`Hello ${this.name}!`);
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}
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}
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class Student extends Person {
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constructor(name, level) {
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super(name);
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this.level = level;
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}
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greet() {
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console.log(`Hello ${this.name} from ${this.level}`);
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}
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}
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const o1 = new Person("Max");
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const o2 = new Student("Tina", "1st Grade");
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const o3 = new Student("Mary", "2nd Grade");
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o3.greet = () => console.log('I am special!');
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o1.greet();
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o2.greet();
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o3.greet();
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