Golang : Get first few and last few characters from string
Problem:
You need to find the last few or first few characters from a string. How to do that?
Solution:
In Golang, a string variable has an index that you can use to extract characters out. Kinda like a slice or array. All you need to do is to assign a new variable with the "extracted" characters based on given index position.
For example :
package main
import (
"fmt"
)
func main() {
str := "hello"
lastChar := str[len(str)-1:]
fmt.Println(lastChar) // gives "o"
lastTwoChar := str[len(str)-2:]
fmt.Println(lastTwoChar) // gives "lo"
firstTwoChar := str[:2]
fmt.Println(firstTwoChar) // gives "he"
}
Happy coding!
See also : Golang : How to check if a string starts or ends with certain characters or words?
By Adam Ng
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