An array of objects vs objects of objects

Hello everyone, Today I’m going to share a magical trick that helps your code run faster. Unlike Java, JavaScript does not have a built-in library to support manipulating data with less amount of time complexity. But there is an alternative way available. By using this trick, you can retrieve / edit/append/search elements in O(1) time complexity. Can’t you believe it? No, matter about best / worst / average case scenarios. After knowing this trick, you can get your target element at O(1) accessing time from collections.

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