删除slice元素并重新初始化slice [关闭]

Question

What is the correct way to remove an item from a slice in GO?

Also, what is the correct way to reinitialize a slice i.e. completely empty it but still keep it?

Answer 1

The answer is manyfold:

1. You must realize that there is no slice without backing array and if you talk about a slice you always have to think about the backing array too. Musing about this a bit leads to...
2. The second part of the question "reinitialize a slice i.e. completely empty it but still keep it" is very unclear. Do not think about slices in this way. a = a[:0] reslices a to zero length while keeping the backing array.
3. For everything else: Have a look at the "official" Slice Tricks https://code.google.com/p/go-wiki/wiki/SliceTricks