If you really just want to reverse rune-by-rune, it's pretty
straightforward:
func Reverse(s string) string {
r := make([]byte, 0, len(s))
for len(s) > 0 {
_, n := utf8.DecodeLastRuneInString(s)
i := len(s) - n
r = append(r, s[i:]...)
s = s[:i]
}
return string(r)
}
That will also deal correctly with invalid utf8 encoding - all the bytes of
the original string will be present in the result.
On Wed, 26 Feb 2020 at 14:20, <ffm2...@web.de> wrote:
> Maybe the implementation in Java is something you could steal to save
> time. Have a look into class StringBuilder where there is a reverse()
> method. It does the reversion differently depending on whether dealing with
> UTF16 or not.
>
> Am Samstag, 15. Februar 2020 17:37:15 UTC+1 schrieb Amarjeet Anand:
>>
>> Hi
>>
>> I was wondering why isn't there built-in string reverse function. Is it
>> left intentionally because of some reason?
>>
>> Although strings are immutable in go, there are multiple ways to achieve
>> this pretty easily. But having this function inbuilt will save our time
>> because we need it quite often.
>>
>>
>> --
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