How do I count word frequencies with a map?

golang, word frequency, map, example

This example demonstrates how to count word frequencies in Go using a map.


    package main

    import (
        "fmt"
        "strings"
    )

    func main() {
        text := "This is a simple test. This test is a test."
        wordCount := make(map[string]int)

        words := strings.Fields(strings.ToLower(text))
        for _, word := range words {
            wordCount[word]++
        }

        for word, count := range wordCount {
            fmt.Printf("%s: %d\n", word, count)
        }
    }