Organizing an intricate collection of objects based on a true/false property in JavaScript

I have been searching for solutions to this issue, but unfortunately nothing seems to be working for me.

My problem involves a large array of objects that I need to sort based on a boolean property (with all the true values taking precedence). The common solution I have come across is as follows:

let myList = [
  {
    thing: <div>Something</div>,
    sortingAttribute: false
  },
  {
    thing: <div>Something else</div>,
    sortingAttribute: true
  },
  {
    thing: <div>Whatever</div>,
    sortingAttribute: true
  }
  .
  .
  .
]

myList.sort((x, y) => {
  return (x.sortingAttribute === y.sortingAttribute) ? 0 : x ? -1 : 1
})

However, despite trying various iterations of this code, it still hasn't produced the desired result.

Another approach suggested is simply using:

myList.sort((x, y) => {return x.sortingAttribute - y.sortingAttribute})

Yet, even this method has not proven effective. I also experimented with underscore's sortBy function, without success.

While it may not seem relevant, before attempting to sort the array, I perform a .map() on another list to obtain the current structure of myList. Could this somehow be causing the issue? Apart from that, everything appears to be straightforward.

Below is the complete function:

getMyList (basicArray) {
    let myList = basicArray.map((arr, key) => {
      const sortingAttribute = key > 2 // just used for the example
      // in reality, there would be a more random arrangement of true and false values

      // other operations
      return {
        thing: (<div key={key}>{stuff}</div>),
        sortingAttribute: sortingAttribute
      }
    })

    myList.sort((x, y) => {
      return (x.isQualified === y.isQualified) ? 0 : x ? -1 : 1
    })
    console.log('myList SORTED', myList)
  }

Currently, the output reflects the order generated by the .map() function. For a list of size 5, the sequence would be:

false, false, false, true, true

Answer №1

To find the numerical difference between two boolean values x and y, you can utilize their implicit conversion to numbers. When true is converted, it becomes 1, while false becomes 0. By subtracting one from the other, you get the desired result.

var values = [true, false, true, false];

values.sort((x, y) => x - y);

console.log(values);

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