How Do I Deep Copy and Clear Maps in Go?

Copying and Clearing Maps in Go

When handling maps in Go, it's important to understand the subtle nuances of copying and clearing. To create a deep copy of a map, avoiding shared references that could lead to unintended modifications, follow these steps:

1. Create a new map: Allocate a new map to store the copied data.

2. Iterate over the original map: Loop through each key-value pair in the original map.

This approach ensures that the new map is a truly independent copy, with its own distinct set of references. Once the copy is created, you can safely clear the original map without affecting the new copy:

Alternatively, if you wish to create a shallow copy (which shares the underlying data), you can simply assign the original map to the new map:

However, note that making changes to either map will affect the other, as they refer to the same data structure.

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