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How to Sort Arrays of Objects by Attribute Using JQuery/JavaScript?

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Release: 2024-10-23 10:51:02
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How to Sort Arrays of Objects by Attribute Using JQuery/JavaScript?

Sorting Object Arrays with JQuery/JavaScript

In JavaScript, you may encounter arrays of objects that require sorting based on specific attributes. To sort an array of objects by a specific attribute, such as "name" in your case, follow these steps:

  1. Extract the Attributes: Create a helper function that extracts the desired attribute from each object in the array. In your case, it would be function(object) { return object.name; }.
  2. Define a Comparison Function: Implement a comparison function that takes two objects and compares their specified attributes. For sorting by "name" in ascending order, use function(a, b) { return a.name.toLowerCase() - b.name.toLowerCase(); }.
  3. Use Array.sort(): Apply the sort() method to the array with the provided comparison function as a parameter: array.sort(comparisonFunction);.

Example:

Consider the following array of objects:

<code class="javascript">var array = [
  { id: 1, name: "Alice", value: 10 },
  { id: 2, name: "Bob", value: 15 },
  { id: 3, name: "Carl", value: 5 }
];</code>
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To sort the array by "name" in ascending order, use the following function:

<code class="javascript">function SortByName(a, b) {
  var aName = a.name.toLowerCase();
  var bName = b.name.toLowerCase();
  return ((aName < bName) ? -1 : ((aName > bName) ? 1 : 0));
}</code>
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Apply the sorting using:

<code class="javascript">array.sort(SortByName);</code>
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The resulting array will be sorted by "name" in ascending order:

<code class="javascript">[
  { id: 3, name: "Carl", value: 5 },
  { id: 1, name: "Alice", value: 10 },
  { id: 2, name: "Bob", value: 15 }
]</code>
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Regarding the Duplicate Question:

It appears that the question was previously closed as a duplicate because it was considered similar to a later question that received more attention. However, this question was asked earlier and should not have been marked as a duplicate.

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