JavaScript set()
Posted 2023-05-17 19:24:16
0
11K
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.
Buscar
Categorías
- Arts
- Business
- Computers
- Juegos
- Health
- Home
- Kids and Teens
- Money
- News
- Personal Development
- Recreation
- Regional
- Reference
- Science
- Shopping
- Society
- Sports
- Бизнес
- Деньги
- Дом
- Досуг
- Здоровье
- Игры
- Искусство
- Источники информации
- Компьютеры
- Личное развитие
- Наука
- Новости и СМИ
- Общество
- Покупки
- Спорт
- Страны и регионы
- World
Read More
Why is entrepreneurship important?
Entrepreneurship plays a crucial role in economic growth and innovation. It drives job creation,...
Шерлок младший. Sherlock Jr. (1924)
Б.Китон - киномеханик, который мечтает быть знаменитым детективом, как Шерлок Холмс. Влюбленный в...
Google Ads Guide: Part 7 // Remarketing ; What is Remarketing?
Part 6: Google ads - Youtube ads (bigmoney.vip)
Basic information – what is remarketing...
If You Live and Breathe Your Values, Your Team Will Follow
In leadership, words matter—but actions matter more. You can hang your company’s...
How Often Should I Publish Blog Posts? (A Complete Guide for Beginners and Pros)
If you’ve started a blog or are planning to launch one, you’ve likely asked yourself:...