Sorting a List of JSON Objects by Nested Values in JavaScript - implementing Undefined Properties
I need some guidance on I'm reviewing some code and I've searched everywhere and can't find a clear answer....... I'm trying to sort an array of JSON objects based on a nested property called `details.age`, but I've encountered an scenario when some of the objects have this property undefined. I want to place those objects at the end of the sorted array. Here's the code I'm using: ```javascript const users = [ { name: 'Alice', details: { age: 25 } }, { name: 'Bob', details: { age: undefined } }, { name: 'Charlie', details: { age: 30 } }, { name: 'David', details: {} } ]; users.sort((a, b) => { const ageA = a.details.age !== undefined ? a.details.age : Infinity; const ageB = b.details.age !== undefined ? b.details.age : Infinity; return ageA - ageB; }); ``` While this appears to work in most cases, I'm sometimes getting unexpected results where user objects with a defined age appear after those with undefined properties. For example, in some cases, sorting does not seem to push users with `details.age` as `undefined` to the end. I’ve tried logging the values of `ageA` and `ageB`, and they show as expected, but the order is still off. I’m using Node.js v14 and this works fine for most cases, but the edge cases with `undefined` are throwing me off. Is there a better way to handle this sorting scenario? Any best practices for ensuring that objects with missing properties are always sorted to the end? What's the best practice here? Any suggestions would be helpful. I recently upgraded to Javascript LTS. Thanks for any help you can provide!