JavaScript set()

Posted 2023-05-17 19:24:16

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.

Please log in to like, share and comment!

Programming

asyncio.sleep() vs time.sleep()

Both of these functions basically has the same purpose, but a little different. Time.sleep()...

By 2023-03-15 19:00:59 0 13K

Contests

International Art Exhibit

All authors working in the formats of contemporary art are invited to participate in the NordArt...

By 2023-02-26 17:44:53 0 19K

Business

What Are Common Barriers to Innovation, and How Can They Be Overcome?

Innovation is often hailed as the key to progress and growth in any organization or industry....

By 2025-03-20 14:58:44 0 10K

Financial Services

Types of market-oriented environmental tools

Key points The three main categories of market-oriented environmental policies are...

By 2023-02-07 17:15:56 0 12K

EĞİTİM BİLGİLERİ

Health Education: Empowering Individuals and Communities for Better Health

Health education is a vital component of public health that aims to empower individuals and...

By 2024-11-21 16:04:40 0 12K