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How to Find an Object in an Array of Objects in JavaScript ๐Ÿ“šโœจ

Learn to locate and filter JavaScript array records like a pro ๐Ÿš€

Xiuer Old
3 min readApr 22, 2024

In the everyday life of a developer, managing data is a common task. Whether itโ€™s an array of users from a database ๐Ÿ“Š, a list of products from an online store ๐Ÿ›’, or an aggregation of tweets ๐Ÿฆ, mastery of data manipulation is key. Today, letโ€™s delve into one very important aspect of it โ€” locating and filtering records from a JavaScript array. ๐Ÿ•ต๏ธโ€โ™‚๏ธ

Did you ever find yourself lost amid a sea of data, looking for that one record? Have you been bamboozled by a barrage of records, wondering how to sift only the relevant ones? If yes, youโ€™re in the right place. ๐Ÿ“

Consider an array of employees, like the one below:

const employees = [
{ id: 1, email: 'john.doe@example.com', name: 'John Doe'},
{ id: 2, email: 'jane.doe@example.com', name: 'Jane Doe'},
{ id: 3, email: 'jim.doe@example.com', name: 'Jim Doe'},
];

Throughout this tutorial, weโ€™ll use this list in our examples to learn an efficient and elegant way of finding the needle in the haystack. ๐Ÿง

1. Finding the Index of an Object ๐Ÿ”
JavaScript has a handy method, findIndex, that gets us the index of the first matching record in an arrayโ€ฆ

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Xiuer Old
Xiuer Old

Written by Xiuer Old

๐Ÿ”ฅLittle brother teaches front-end and AI online๐ŸŒˆ

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