{}
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main.go
// Online Go compiler to run Golang program online package main import "fmt" type CharFreq struct { Char rune Count int } func main() { str := "We often will need to manipulate strings in our messaging app For example, adding some personalization by using a customer's name within a template" strMap := make(map[rune]int) strChan := make(chan CharFreq) for _,v := range str{ //tolower and space skip if v >= 'A' && v <= 'Z' { v = v+32 } if v == ' '{ continue } strMap[v]++ } go func (){ for i,v := range strMap{ strChan <- CharFreq{Char:i,Count:v} } close(strChan) }() for itm := range strChan{ fmt.Printf("Character: %c, Count: %d\n", itm.Char, itm.Count) } }
Output