add ToQuery and FromQuery

conversion.go

@@ -0,0 +1,39 @@
+package lo
+
+import (
+	"fmt"
+	"strings"
+)
+
+// form query convert string to query string
+func ToQuery[K comparable, V any](in map[K]V) string {
+	res := ""
+
+	firstIteration := true
+	for k, v := range in {
+		if firstIteration {
+			res += fmt.Sprintf("%v=%v", k, v)
+			firstIteration = false
+		} else {
+			res += fmt.Sprintf("&%v=%v", k, v)
+		}
+	}
+
+	return res
+}
+
+// form query convert query string to string
+func FromQuery(s string) map[string]string {
+	result := make(map[string]string)
+
+	pairs := strings.Split(s, "&")
+
+	for _, pair := range pairs {
+		parts := strings.Split(pair, "=")
+		if len(parts) == 2 {
+			result[parts[0]] = parts[1]
+		}
+	}
+
+	return result
+}

conversion_test.go

@@ -0,0 +1,33 @@
+package lo
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestToQuery(t *testing.T) {
+	t.Parallel()
+	is := assert.New(t)
+
+	result1 := ToQuery(map[string]string{"foo": "bar", "bar": "baz", "k": "v"})
+	result2 := ToQuery(map[string]string{"foo": "bar", "bar": "baz"})
+	result3 := ToQuery(map[string]string{"key": "value"})
+
+	is.Equal(result1, "foo=bar&bar=baz&k=v")
+	is.Equal(result2, "foo=bar&bar=baz")
+	is.Equal(result3, "key=value")
+}
+
+func TestFromQuery(t *testing.T) {
+	t.Parallel()
+	is := assert.New(t)
+
+	result1 := FromQuery("foo=bar&bar=baz&k=v")
+	result2 := FromQuery("foo=bar&bar=baz")
+	result3 := FromQuery("key=value")
+
+	is.Equal(result1, map[string]string{"foo": "bar", "bar": "baz", "k": "v"})
+	is.Equal(result2, map[string]string{"foo": "bar", "bar": "baz"})
+	is.Equal(result3, map[string]string{"key": "value"})
+}