JavaScript set()
Posté 2023-05-17 19:24:16
0
11KB
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.
Rechercher
Catégories
- Arts
- Business
- Computers
- Jeux
- Health
- Domicile
- Kids and Teens
- Argent
- 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
Lire la suite
What Are the Different Types of Influencers?
In the world of social media and digital marketing, influencers play a crucial role in shaping...
How Do You Create or Develop a Product Strategy?
A well-crafted product strategy is the cornerstone of every successful product. Without it, teams...
Exploring the World of Arts and Crafts: A Creative Journey
Arts and crafts have been a cherished part of human culture for centuries, blending creativity...
Свидетель обвинения. Witness for the Prosecution. (1957)
Сэр Уилфрид Робартс - тяжело больной адвокат, которому врачи запретили заниматься уголовными...
Are Student Loans Forgiven?
Are Student Loans Forgiven?
Student loan forgiveness is one of the most discussed and...