ES6 - Use getters and setters to Control Access to an Object

JavaScript
1

Tell us what’s happening:

I thought I have the get and set methods defined, but I actually got it wrong, and it says that I don’t have it defined. Could you please assist me on where the error is?

Your code so far

// Only change code below this line
class Thermostat {
  constructor(tempFahrenheit) {
    this._tempFahrenheit = tempFahrenheit;
  }

  get tempCelsius() {
    return this._tempCelsius;
  }

  set tempCelsius(tempFahrenheit) {
    this._tempCelsius = 5/9 * (tempFahrenheit - 32);
  }
}
// Only change code above this line

const thermos = new Thermostat(76); // Setting in Fahrenheit scale
let temp = thermos.temperature; // 24.44 in Celsius
thermos.temperature = 26;
temp = thermos.temperature; // 26 in Celsius

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Challenge Information:

ES6 - Use getters and setters to Control Access to an Object

2

Hi @KoduFCC

To define the getter and setter carefully look at the example given.

Then compare it to your code.

Happy coding

3

the name for setter and getter must be temperature

4

I changed the name for the setter and getter to be ‘temperature.’ Here’s my edited code:

class Thermostat {
  constructor(temperature) {
    this._temperature = temperature;
  }

  get temperature() {
    return this._temperature;
  }

  set temperature(temperature) {
    this._temperature = 5/9 * (temperature - 32);
  }
}

‘When instantiated with a Fahrenheit value, Thermostat should set the correct temperature’ and ‘Calling the setter with a Celsius value should set the temperature’ are the feedback messages that need to be fixed. I’d like to know where I’m going wrong.

5

this need to return the value in celsius

6

Now I got it, but the last one is the issue.

7

Can you post your updated code please

8

Here it is:

class Thermostat {
  constructor(temperature) {
    this._temperature = temperature;
  }

  get temperature() {
    return 5/9 * (this._temperature - 32);
  }

  set temperature(temperature) {
    this._temperature = 5/9 * (temperature - 32);
  }
}
9

Set should accept a temperature in Celsius, right?

Would you use the same calculation for the setter and the getter?

Internally do you store the temp as C or F?

How are you testing this?

const thermos = new Thermostat(76); // Setting in Fahrenheit scale
let temp = thermos.temperature; // 24.44 in Celsius
console.log(temp)
>>24.444444444444446

thermos.temperature = 26;
temp = thermos.temperature; // 26 in Celsius
console.log(temp)
>>-19.629629629629633