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Comprehensive Guide to Copying Arrays and Objects in JavaScript Without References In JavaScript, copying arrays and objects can be tricky due to the nature of references. When you assign an array or object to a new variable, you're actually assigning a reference to the original data, not a copy. This means that changes to the new variable affect the original data. To avoid this, you need to create a true copy of the array or object. Here's a detailed guide on how to do this using various methods. Copying Arrays 1. Using the Spread Operator The spread operator (...) is…