Use Destructuring Assignment to Assign Variables from Objects(?)

JavaScript
#1

Tell us what’s happening:

Where am I doing it wrong?

Your code so far


const AVG_TEMPERATURES = {
  today: 77.5,
  tomorrow: 79
};

function getTempOfTmrw(avgTemperatures) {
  "use strict";
  // change code below this line
  const {tomorrow: tempOfTomorrow} = AVG_TEMPERATURES; // change this line
  // change code above this line
  return tempOfTomorrow;
}

console.log(getTempOfTmrw(AVG_TEMPERATURES)); // should be 79

Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/es6/use-destructuring-assignment-to-assign-variables-from-objects

#2

The function takes an argument, called avgTemperatures. You haven’t used it, you’re using the object used to test your code instead.

1 Like
#3

Can you be more specific, please? I don’t understand what to do and where to use that argument.

#4

@ericmita Do you understand what avgTemperatures represents here?

#5

Assume this does not exist:

const AVG_TEMPERATURES = {
  today: 77.5,
  tomorrow: 79
};

Now how would you make your function work? I get the challenge wording is not fantastic, but the above is just an object used to test the function to see if it works

#6

Look at this again:

That constant is being passed into the function. Imagine, if it was this:

getTmpOfTmrw({
  today: 77.5,
  tomorrow: 79
})

Then how would you do it?

#7

const {tomorrow: tempOfTomorrow} = AVG_TEMPERATURES;

But I’m still not using the avgTemperatures parameter and I get this error: destructuring with reassignment was used

Update: I finally understood now. Many thanks.
This was the solution: const {tomorrow: tempOfTomorrow} = avgTemperatures

3 Likes
#8