Is it possible to call class methods from the `contructor` in javascript?

Question

The following is an example of an ES6 Class.
class Car {
    constructor(brand) {
        this.brand = brand;
        // this.setBrand(brand); // how is it possible to do this?
    }
    
    setBrand(brand) {
        this.brand = brand;
    }
    
    getBrand() {
        return this.brand;
    }
    
    getAd() {
        return `${this.brand} is the best brand out there!!`;
    }
}

However, since the constructor is just a repeat of the method setBrand, I was wondering how it would be possible to remove the redundancy and perhaps call setBrand from within the constructor.
Any pointers?

Joel Imbergamo · Answer

You can call the method by doing:
        class Car {
            constructor(brand) {
                this.setBrand(brand); <--------
            }

setBrand(brand) {
                this.brand = brand;
            }
        }

in this case it's ok because you are only assigning a value to  a property, but keep in mind it's a bad practice to make the constructor do anything other than create the object.

Always Learning · Answer

You can do as you suspect. In the constructor this is a reference to the new object so you can call class methods in it. The code below runs properly.


class Car {
    constructor(brand) {
        this.setBrand(brand); // this works fine
    }
    
    setBrand(brand) {
        this.brand = brand;
    }
    
    getBrand() {
        return this.brand;
    }
    
    getAd() {
        return `${this.brand} is the best brand out there!!`;
    }
}

let car = new Car("DeLorean")
console.log(car.getBrand())
console.log(car.getAd())

Is it possible to call class methods from the `contructor` in javascript?

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