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##  ##  ##      ##  ##  ## ##   #   #   #   #   #  ##
#####   ####    #####   #   #   #   #   #   #   #  ####
##  #   ##      ##      ## ##    # #    #    # #   ##
##   #  ######  ##       ###      #    ###    #    ######

$ curl repovive.com/roadmaps/go/strings/iterating-strings

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#####   ######  #####    ###    #   #  ###  #   #  ######
##  ##  ##      ##  ##  ## ##   #   #   #   #   #  ##
#####   ####    #####   #   #   #   #   #   #   #  ####
##  #   ##      ##      ## ##    # #    #    # #   ##
##   #  ######  ##       ###      #    ###    #    ######

$ curl repovive.com/roadmaps/go/strings/iterating-strings

Repovive

Iterating Strings - Strings | Go | Repovive

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Go10 sections · 431 units20h total

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Iterating Strings

range gives runes

Using range on a string iterates over runes, not bytes:

s := "Go日本"
for i, r := range s {
    fmt.Printf("%d: %c\n", i, r)
}
// 0: G
// 1: o
// 2: 日
// 5: 本

Notice the index jumps from $2$ to $5$ . That's because 日 takes $3$ bytes. The range keyword handles multi-byte characters correctly, giving you the starting index and the rune value.