Organize an array containing nested objects within other objects

Question

Organize an array containing nested objects within other objects

I'm stuck with sorting this array:

[
  ["name1", { count: 20 }],
  ["name2", { count: 10 }]
]

Is there a way to sort this array based on the count values?

My attempt using the sort function was unsuccessful,

const sort = Array.sort((a, b) => b.count - a.count);

Unfortunately, this didn't have any effect.

javascript arrays sorting

Answer 1

Answer №1

To retrieve the second entry in the arrays within the outer array, you should use a different approach in your code. The issue lies in attempting to access a count property on the array entries, which they do not possess:

theArray.sort((a, b) => b[1].count - a[1].count);

It's important to note that the sort function is called directly on the array itself, not on the Array constructor. Additionally, this function sorts the array in place rather than returning a sorted version (although it does return the same array).

Here's a live example to illustrate:

const theArray = [
  ["name1", { count: 20 }],
  ["name2", { count: 10 }],
  ["name3", { count: 15 }]
];
console.log("Before sorting:", theArray);
theArray.sort((a, b) => b[1].count - a[1].count);
console.log("After sorting:", theArray);

.as-console-wrapper {
    max-height: 100% !important;
}

Answer 2

To retrieve the second entry in the arrays within the outer array, you should use a different approach in your code. The issue lies in attempting to access a count property on the array entries, which they do not possess:

theArray.sort((a, b) => b[1].count - a[1].count);

It's important to note that the sort function is called directly on the array itself, not on the Array constructor. Additionally, this function sorts the array in place rather than returning a sorted version (although it does return the same array).

Here's a live example to illustrate:

const theArray = [
  ["name1", { count: 20 }],
  ["name2", { count: 10 }],
  ["name3", { count: 15 }]
];
console.log("Before sorting:", theArray);
theArray.sort((a, b) => b[1].count - a[1].count);
console.log("After sorting:", theArray);

.as-console-wrapper {
    max-height: 100% !important;
}

Organize an array containing nested objects within other objects

Answer №1

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