JavaScript set()
Posted 2023-05-17 19:24:16
0
8K
In JavaScript, a setter can be used to execute a function whenever a specified property is attempted to be changed. Setters are most often used in conjunction with getters to create a type of pseudo-property. It is not possible to simultaneously have a setter on a property that holds an actual value.
Examples
Defining a setter on new objects in object initializers
The following example define a pseudo-property current
of object language
. When current
is assigned a value, it updates log
with that value:
const language = {
set current(name) {
this.log.push(name);
},
log: [],
};
language.current = "EN";
console.log(language.log); // ['EN']
language.current = "FA";
console.log(language.log); // ['EN', 'FA']
Note that current
is not defined, and any attempts to access it will result in undefined
.
Site içinde arama yapın
Kategoriler
- Arts
- Business
- Computers
- Oyunlar
- Health
- Home
- Kids and Teens
- Money
- News
- Recreation
- Reference
- Regional
- Science
- Shopping
- Society
- Sports
- Бизнес
- Деньги
- Дом
- Досуг
- Здоровье
- Игры
- Искусство
- Источники информации
- Компьютеры
- Наука
- Новости и СМИ
- Общество
- Покупки
- Спорт
- Страны и регионы
- World
Read More
JavaScript has()
The has() function of the map object accepts a key in string format and returns a...
Python Fun Fact
There's a fact about Python that you might not know! Python has a module called "this". The...
Why is the Issue of Sustainability Important for Development?
Sustainability is one of the most pressing issues facing global development today. As the world...
Fox 31 Denver. Live TV. Colorado, USA
KDVR is a Fox-affiliated television station located in Denver, Colorado, United States. When no...
Pottery / Do-it-yourself ceramics
What ceramics are made of and where to get materials for workCeramics is baked clay, which is the...