Golang：字符串修剪函数

Question

I used strings.Trim() in Golang to trim the first five characters.
However, the last "a" is always gone.
Why is that so?

Example:

sentence := "Kab. Kolaka Utara"
result := strings.Trim(sentence,sentence[:4])
fmt.Println(result)

Result: Kolaka Utar
I expected: Kolaka Utara

https://play.golang.org/p/R6UoKWNaVv

Thank you for your help.

Answer 1

Trim returns a slice of the string s with all leading and trailing Unicode code points contained in cutset removed.

sentence[:4] is "Kab." Trim will remove all leading and trailing "k","a", "b", "."

https://golang.org/pkg/strings/#Trim