Https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/es6/use-getters-and-setters-to-control-access-to-an-object

Tell us what’s happening:
It shows Thermostat should be able to be instantiated. error.

Your code so far


/* Alter code below this line */
class Thermostat {
constructor(fahrenheit){
    this._fahrenheit=fahrenheit;
}
//getter
get temperature()
{
    return ((5/9)*(this.fahrenheit-32));
}
//setter
set temperature(Celsius){
    this._fahrenheit=(Celsius*9.0/5+32)
}
}
/* Alter code above this line */

const thermos = new Thermostat(56); // setting in Fahrenheit scale
let temp = thermos.temperature; // 24.44 in C
thermos.temperature = 26;
temp = thermos.temperature; // 26 in C

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User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.130 Safari/537.36.

Challenge: Use getters and setters to Control Access to an Object

Link to the challenge:
https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/es6/use-getters-and-setters-to-control-access-to-an-object

You do not have a fahrenheit property, so this.fahreheit is undefined.