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!

Business

Why Is Thought Leadership Important?

In today's competitive professional landscape, being good at what you do is no longer enough. To...

By 2025-05-08 16:36:08 0 8K

Arts, Culture and Entertainment

The Prom (2020)

In desperate need of a noble cause to revive their public images and bounce back, self-centred...

By 2022-09-26 20:48:09 0 28K

Horror

The Evolution of the Horror Movie Industry: A Tale of Fear, Innovation, and Endurance

The horror movie industry is one of the most enduring and versatile genres in cinema history....

By 2024-11-19 15:41:43 0 15K

Marketing and Advertising

What Role Does Social Media Play in Customer Acquisition?

Social media has evolved from a brand-awareness channel into a powerful engine for customer...

By 2026-01-20 17:06:11 0 1K

Marketing and Advertising

How Do I Find Influencers for My Brand/Campaign?

A comprehensive guide to locating, evaluating, and partnering with the right influencers...

By 2025-10-07 17:48:52 0 7K