I want to save or store the outcome of a property in a class to use in another property in the same class. How do I do that?
for example:
class MyClass {
get randomNumber() {
let number = Math.floor(Math.random() * 10) + 1
return number
}
get newSum() {
return this.randomNumber + 1 // I want to use the result from the previous property and add 1 to that
}
}
```
Instantly call the randomNumber getter in the constructor. The contructor is called when you use the new keyword to create an instance of MyClass.
The newSum getter now returns the stored random number + 1.
Though, I would recommend not using the getter pattern for the newSum property as a getter should not be used to mutate values. Instead make it a proper method.
class MyClass {
constructor() {
this.number = this.randomNumber;
}
get randomNumber() {
let number = Math.floor(Math.random() * 10) + 1
return number
}
newSum() {
return this.number += 1;
}
}
const instance = new MyClass();
console.log(instance.number); // The random starting number.
console.log(instance.newSum()); // +1
console.log(instance.newSum()); // +1
console.log(instance.newSum()); // +1Collected from the Internet
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