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The make function takes the type, length and capacity. If you don’t supply capacity, it defaults to length. So if you want to use append, do something like: make([]int, 0, length)

That will allocate a slice that can fit length ints but has a length of 0 (so append starts at index 0).

You can call len(slice) and cap(slice) to see the difference, but append will insert an element at index len(slice), growing the capacity if necessary




Ahh thanks for the great explanation! Love HN.




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