function Fraction(num, den) {
    this.numerator = num;
    this.denominator = den;
}

Fraction.prototype.toString = function() {
    return this.numerator + " / " + this.denominator;
}

f = new Fraction(2,3);
console.log("f is " + f)
 

class Fraction {

constructor(num, den) {

this._numerator = num; this._denominator = den;

}

toString() {

return ${this.numerator} / ${this.denominator};

}

get numerator() {

return this._numerator;

}

set numerator(value) {

console.log(“error cannot set the numerator”);

}

}

 
 
 
x = new Fraction(2,3);
console.log("x is " + x)
console.log(x.numerator)

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