Golang : Break string into a slice of characters example
Problem:
You want to convert a string into a slice/array of individual characters. It is similar to breaking down a string into slice/array example with strings.Fields()
function. but instead of words, you want to break into single characters. How to do that?
Solution:
Use for loop range to break the string into characters and then use text/Scanner.TokenString()
function to return a printable string for a token or Unicode character.
Here you go!
package main
import (
"fmt"
"text/scanner"
)
func breakToCharSlice(str string) []string {
tokens := []rune(str)
var result []string
for _, char := range tokens {
result = append(result, scanner.TokenString(char))
}
return result
}
func main() {
str := "Ace of Hearts"
temp := breakToCharSlice(str)
for k, v := range temp {
fmt.Println(k, v)
}
unicodestr := "α제ちمرحباהיי"
temp = breakToCharSlice(unicodestr)
for k, v := range temp {
fmt.Println(k, v)
}
}
Output:
0 "A"
1 "c"
2 "e"
3 " "
4 "o"
5 "f"
6 " "
7 "H"
8 "e"
9 "a"
10 "r"
11 "t"
12 "s"
0 "α"
1 "제"
2 "ち"
3 "م"
4 "ر"
5 "ح"
6 "ب"
7 "ا"
8 "ה"
9 "י"
10 "י"
See also : Golang : Convert string to array/slice
By Adam Ng
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