JavaScript Setter

In this tutorial, you will learn the basics of using the JavaScript Setter. We will explore how to create and use a Setter, as well as how to use the Setter to create a more organized and efficient codebase. By the end of this tutorial, you will have a better understanding of how to use the JavaScript Setter to create a better codebase.

Why should you use it?

Organize your codebase by separating out different pieces of your code into separate functions.
Easily access and modify specific pieces of your code with the Setter.
Simplify the debugging process by having a centralized place to debug your code.

Setter

A setter is a function that sets the value of a property on an object. Setters are typically used when you want to control how a property is set. For example, you may want to make sure that when a property is set, it is always a valid value. Setters are defined using the set keyword followed by the property name, followed by the function definition.

index.js

let myObject = {
  myProperty: 'value',
  set myProperty(value) {
    if (value === 'valid value') {
      this.myProperty = value;
    }
  }
};

set myProperty(value) { ... } To use a setter, you can assign a value to the property like you would any other property.

index.js

let myObject = {
  myProperty: 'value',
  set myProperty(value) {
    if (value === 'valid value') {
      this.myProperty = value;
    }
  }
};

myObject.myProperty = 'value';

myObject.myProperty = 'value'; The setter function will be called when you assign a value to the property. The value that is assigned is passed to the setter as an argument.

index.js

let myObject = {
  myProperty: 'value',
  set myProperty(value) {
    if (value === 'valid value') {
      this.myProperty = value;
    }
  }
};

myObject.myProperty = 'value';

myObject.myProperty = 'value'; Inside the setter, you can perform any validation or transformation on the value before it is set.

index.js

let myObject = {
  myProperty: 'value',
  set myProperty(value) {
    if (value === 'valid value') {
      this.myProperty = value;
    }
  }
};

myObject.myProperty = 'value';
console.log(myObject.myProperty);

myObject.myProperty = 'value'; myObject.myProperty // 'value' Setters are useful for ensuring that values are always valid and for performing any necessary transformations on values before they are set.