JavaScript set()

Posté 2023-05-17 19:24:16

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.

Connectez-vous pour aimer, partager et commenter!

Personal Finance

What Filing Status Should I Choose?

What Filing Status Should I Choose? “Is Married Filing Jointly better than...

Par 2025-11-20 17:03:04 0 1KB

Marketing and Advertising

What Should a Telemarketing Campaign Cost — and How Do You Budget It?

Introduction Telemarketing remains one of the most direct and measurable forms of customer...

Par 2025-11-06 17:52:45 0 1KB

Mental Health

ADHD: Comorbidities / Trauma

ADHD, trauma, and Adverse Childhood Experiences are also comorbid, which could in part be...

Par 2023-03-28 15:05:58 0 12KB

Personal Finance

How Much Should I Pay Into My Pension or Retirement Account?

How Much Should I Pay Into My Pension or Retirement Account? Deciding how much to contribute to...

Par 2025-11-25 21:48:01 0 955

Business

What are marketing communications?

Marketing communications, like any other communications, consist of certain elements, these are:...

Par 2024-09-03 19:04:06 0 14KB