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Solution Review: Rest & Spread Syntax

Explore how to use rest and spread syntax in JavaScript to handle function parameters and array copying. Understand immutability and argument collection, preparing you for common frontend interview questions on these topics.

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Solution 1 #

Explanation #

Rest follows the same syntax as the spread syntax, i.e., placing three dots ... before what we choose to copy. However, the difference lies in the purpose. Where spread is used to create copies of arrays/objects, rest is used to collect all the remaining values into an array. Hence, Option B is ...