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Russia has invaded Ukraine and already killed tens of thousands of civilians, with many more raped or tortured. It's a genocide. We need your help. Let's fight back against the Russian regime.
Help Ukraine! Fight the Russian regime!


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🗝️ Check if a map contains a key in Go

Learn how to check if a key exists in a map
introduction map

💕 Copy a map in Go

Learn how to copy all elements of a map to another
introduction map