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.