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.
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. 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. 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. 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.