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
What Tools Do Growth Hackers Use?
Growth hacking thrives on speed, experimentation, and data-driven decision-making. To succeed,...
Pros and Cons of Forming a Partnership
Introduction: Weighing the Benefits and Risks of Partnerships
Forming a business partnership is...
In E‑Commerce: “Did We Ship Quickly? Were Returns Easy?”
In the fast-paced world of e-commerce, speed and simplicity can make or break the customer...
What Are the Objectives of Commercial Policy?
What Are the Objectives of Commercial Policy?
Commercial policy refers to the set of rules,...
What is the difference between restrictive and protective policy?
What is the difference between restrictive and protective policy?
Public policy often tries to...