My understanding was that a string had a pointer and a length,
whereas a slice had a pointer and a length and a capacity.

https://golang.org/src/reflect/value.go?s=59515:59567#L1973


On Tuesday, 18 May 2021 at 20:32:39 UTC+1 Brian Candler wrote:

> Assigning a string value to another variable doesn't double the memory 
> usage.
>
> A value of type string consists of a pointer, a length, and a capacity, 
> and only these are copied - so you get another copy of the pointer, 
> pointing to the same data buffer.
>
>>

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