showing results for - "getter and setter in javascript"
Sherlock
26 Aug 2017
1// *** JS Class GETTER / SETTER (+split)
2
3	class Person {
4        constructor(firstname, lastname) {
5            this.firstname = firstname;
6            this.lastname = lastname;
7        }
8        // getters => access properties
9        // setters => change or mutate them
10        get fullName() {
11            return `Hello ${this.firstname} ${this.lastname}`;
12        }
13        set fullName(space) {
14            const parts = space.split(' ');
15            this.firstname = parts[0];
16            this.lastname = parts[1];
17        }
18    }
19    let run = document.getElementById("run");
20    run.addEventListener('click', () => {
21        let john = new Person('John', 'Connor');
22        console.log(john.fullName);
23        john.fullName = 'Billy Butcher';
24        console.log(john.firstname + ' ' + john.lastname);
25      	//console.log(`${john.firstname} ${john.lastname}`); same output
26      // => has to be john.firstname otherwise undefined 
27    }) 
28// output => Hello John Connor | Billy Butcher
Joris
28 Sep 2017
1class Thermostat {
2  constructor(fahrenheit) {
3    this.fahrenheit = fahrenheit;
4  }
5  
6  get temperature() {
7    return (5 / 9) * (this.fahrenheit - 32);
8  }
9  
10  set temperature(celsius) {
11    this.fahrenheit = (celsius * 9.0) / 5 + 32;
12  }
13}
14
Owain
02 Nov 2018
1let obj = {
2  log: ['a', 'b', 'c'],
3  get latest() {
4    if (this.log.length === 0) {
5      return undefined;
6    }
7    return this.log[this.log.length - 1];
8  }
9};
10
11obj.log.push('d');
12console.log(obj.latest); //output: 'd'
Emma
01 Jun 2016
1/*Getter functions are meant to simply return (get) the value of an object's 
2private variable to the user without the user directly accessing the private 
3variable.*/
4/*Setter functions are meant to modify (set) the value of an object's private 
5variable based on the value passed into the setter function. This change could
6involve calculations, or even overwriting the previous value completely.*/
7class Book {
8  constructor(author) {
9    this._author = author;
10  }
11  // getter
12  get writer() {
13    return this._author;
14  }
15  // setter
16  set writer(updatedAuthor) {
17    this._author = updatedAuthor;
18  }
19}
20const novel = new Book('anonymous');
21console.log(novel.writer);  // anonymous
22novel.writer = 'newAuthor';
23console.log(novel.writer);  // newAuthor
Dante
21 Jun 2016
1public class Computer
2    {
3        int ram;
4        public int RAM 
5        { 
6             get 
7             {
8                  return ram;
9             }
10             set 
11             {
12                  ram = value; // value is a reserved word and it is a variable that holds the input that is given to ram ( like in the example below )
13             }
14        }
15     }
Victoria
26 Apr 2020
1const person = {
2    name: "abc",
3  
4    get Name() {
5      return this.name;
6    },
7  
8    set Name(v) {
9      this.name = v;
10    }
11  };
12  
13 console.log(person.Name); 
14 person.Name = 'John Doe'; 
15 console.log(person.Name); 
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