getter and setters in js

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showing results for - "getter and setters in js"
Anisa
26 Jun 2017
1// ES6 get and set
2class Person {
3  constructor(name) {
4    this._name = name;
5  }
6
7  get name() {
8    return this._name.toUpperCase();
9  }
10
11  set name(newName) {
12    this._name = newName; // validation could be checked here such as only allowing non numerical values
13  }
14
15  walk() {
16    console.log(this._name + ' is walking.');
17  }
18}
19
20let bob = new Person('Bob');
21console.log(bob.name); // Outputs 'BOB'
Kit
03 Oct 2016
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'
Destiny
19 Sep 2020
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
Monika
24 Mar 2017
1const language = {
2  set current(name) {
3    this.log.push(name);
4  },
5  log: []
6}
7
8language.current = 'EN';
9language.current = 'FA';
10
11console.log(language.log);
Aubrey
04 Oct 2018
1var person={firstname:"chetha",secondname="kumar",get fullname()
2{
3  	return this.firstname+" "+this.secondname;
4}
5document.write(person.fullname);
6var person={firstname:"chethan",secondname="kumar",course:"",set course(x)
7{
8  	this.course=x;
9}
10person.course="bca";
11document.write(person.course);
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