Merging JavaScript Objects: Techniques and Examples

 Merging properties of JavaScript objects is a common task when dealing with dynamic data structures. In this post, we’ll explore different ways to merge objects in JavaScript, showcasing various examples and techniques suitable for flat objects without recursion or functions.

1. Using the Spread Operator

The spread operator (...) is a modern and concise way to merge objects introduced in ECMAScript 2018. It creates a new object containing the properties of both input objects. If there are duplicate keys, the values from the second object overwrite those in the first.

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