Suppose you have code like this
// verylongstring may be several thousand bytes long
verylongstring := GetSomeVeryLongString()
prefix := verylongstring[:3]
prefixStore.StorePrefixForDurationOfApplication(prefix)
If I understand correctly, verylongstring cannot be garbage collected
because prefix points to the first 3 characters of it and is stored forever.
What I want is to hold onto the first 3 characters while allowing the rest
of verylongstring to be GCed? In JAVA, you can do
prefix := new String(verylongstring.substring(0,3))
which allows verylongstring to be GCed even if the application holds onto
prefix. This is because the above JAVA code has prefix reference a copy of
the first 3 characters of verylongstring instead of having prefix reference
verylongstring itself.
What is the best way to do this in go?
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