getter and setter in typescript
// An example of getter and setter
class myClass {
private _x: number;
get x() {
return this._x;
}
// in this example we'll try to set _x to only numbers higher than 0
set x(value) {
if(value <= 0)
throw new Error('Value cannot be less than 0.');
this._x = value;
}
}
let test = new myClass();
test.x = -1; // You'll be getting an errortypescript getter setter
interface IPerson {
fullname: string
age: number
}
class Person {
private fullname:string;
private age:number;
constructor({...options}: IPerson ) {
this.fullname = 'jane doe'
this.age = 30
this.set(options)
}
get(): IPerson {
const data = {
fullname: this.fullname,
age: this.age
}
return data
}
set<T extends IPerson>({...options}: T): void {
this.fullname = options.fullname
this.age = options.age
}
}
const data = new Person({
fullname: 'john doe',
age:28
})
console.log(data.get())Copyright © 2021 Codeinu
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