JavaScript set()

Posted 2023-05-17 19:24:16

10K

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!

Business

What Are the Components of a Good Business Plan?

A well-crafted business plan serves as a blueprint for your company’s success, whether...

By 2024-12-17 14:41:35 0 10K

Business

How Do Startup Founders Build a Strong Company Culture?

Building a strong company culture is one of the most important and often challenging tasks for...

By 2025-04-03 14:59:41 0 8K

Mental Health

Autism Spectrum: Diagnosis Pt.4

As of 2019, psychologists wait until a child showed initial evidence of ASD tendencies, then...

By 2023-03-07 17:42:29 0 11K

Business

Coaching is an effective process of personnel development

Coaching is an effective process of personnel development What is Coaching? This is...

By 2024-08-11 16:20:25 0 18K

Телевидение

Телеканал "Продвижение" прямой эфир.

Семейно - развлекательный телеканал «Продвижение» создан в 2014 году. Аудитория...

By 2022-11-26 20:54:38 0 25K