Help cant solve FCC problem in ES6 portion of javascript

JavaScript
#1

why was this wrong

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

and why was this correct?

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

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

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

Please give a simple explanation.
also if you can suggest some useful resources regarding my misconception (above) so that I can learn it properly please do so.

this topic is from ES6: Use Destructuring Assignment to Assign Variables from Objects

#2

The text in the challenge wasn’t correctly written. There is a bug open on this issue, and it should be fixed in the next release of FCC.

#3

i had read some posts on the same issue but couldn’t quite understand them. they were something about parameter scope.

#4

It’s nothing to do with scope, really, it’s just that the text of the challenge says to destructure AVG_TEMPERATURES, but the tests are actually looking for avgTemperatures. It’s just that the documentation is wrong, that’s all.

#5

Thank you very much , sir.

#6