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In the Go library source you often see that a slice is passed by creating a new slice storage reference like so
method(s[:])
What’s the benefit of this, compared to just passing the original slice?
method(s)
The
s[:]construct is normally used only to create a new slice referencing an existing array, not for “passing the original slice”.If
s[:]is really used somewhere in the stdlib andsis a slice than it could be e.g. a refactoring leftover. Please report such place if known to you on the Go issue tracker.