Original code question: Use Destructuring Assignment to Pass an Object as a Function's Parameters

JavaScript
1

Tell us what’s happening:
Can someone explain the original code for this assignment? I’m confused by the apparent existence of two variables called, “half”. It appears there is a const variable named half. This half gets it’s value by calling an anonymous function which calls a function named half. Is that correct? Using “half” twice seems needlessly confusing to me.

Your code so far


const stats = {
  max: 56.78,
  standard_deviation: 4.34,
  median: 34.54,
  mode: 23.87,
  min: -0.75,
  average: 35.85
};
const half = (function() {
  "use strict"; // do not change this line

  // change code below this line
  return function half(stats) {
    // use function argument destructuring
    return (stats.max + stats.min) / 2.0;
  };
  // change code above this line

})();
console.log(stats); // should be object
console.log(half(stats)); // should be 28.015

Your browser information:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:63.0) Gecko/20100101 Firefox/63.0.

Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/es6/use-destructuring-assignment-to-pass-an-object-as-a-functions-parameters

2

It’s for the tests, the code you need to work on is the bit between the comments. It’s there for the benefit of the tests (note that if you delete that our function it will generally still work fine, and run the tests fine)