Sort Array By Firstname Alphabetically In Javascript Duplicate

Sorting an array by the alphabetically listed first names might seem like a tricky task, especially when dealing with duplicate names in JavaScript. However, with the right approach, we can swiftly tackle this challenge and organize our array with ease. Let's walk through the steps to achieve this efficiently.

To sort an array by first names alphabetically in JavaScript while handling duplicates, we can use a combination of array methods and a custom sorting function. First, we need to create a sample array with objects containing the first names to demonstrate this process.

Javascript

const namesArray = [
    { firstName: 'Alice' },
    { firstName: 'Bob' },
    { firstName: 'Bob' },
    { firstName: 'Charlie' },
    { firstName: 'Alice' },
    { firstName: 'Alice' }
];

Now that we have our sample array set up let's move on to sorting it. We'll use a custom sorting function that first sorts the names alphabetically and then keeps the duplicate names in their original order in the array.

Javascript

const sortedArray = namesArray.sort((a, b) =&gt; {
    if (a.firstName === b.firstName) return 0;
    return a.firstName &lt; b.firstName ? -1 : 1;
});

In this custom sorting function, we compare the first names of each object in the array. If the names are the same, we return 0 to keep their relative order. Otherwise, we sort them alphabetically using the ternary operator.

Let's check the sorted result:

Javascript

console.log(sortedArray);

The output will be:

Plaintext

[
    { firstName: &#039;Alice&#039; },
    { firstName: &#039;Alice&#039; },
    { firstName: &#039;Alice&#039; },
    { firstName: &#039;Bob&#039; },
    { firstName: &#039;Bob&#039; },
    { firstName: &#039;Charlie&#039; }
]

As you can see, the array is now sorted alphabetically by first names while maintaining the original order of the duplicate names.

By following these steps, you can efficiently sort an array by first names alphabetically in JavaScript, even when dealing with duplicates. This method allows you to organize your data effectively while preserving the original order of duplicate entries.

Feel free to adapt this approach to your specific requirements and explore further enhancements to suit your coding needs. Sorting arrays in JavaScript can be a powerful tool in your programming arsenal, and mastering techniques like this will undoubtedly enhance your coding skills. Happy coding!

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