func ExampleMakeMap_Second() {
// Let's map the person fullnames to an array of names
type Person struct{ FirstName, LastName string }
var mapPersonsToStrings func([]Person, func(Person, int) string) []string
if err := funcs.MakeMap(&mapPersonsToStrings); err != nil {
log.Fatal(err)
}
people := []Person{{"John", "Doe"}, {"Jane", "Doe"}}
fmt.Println(mapPersonsToStrings(people, func(p Person, index int) string {
return fmt.Sprintf("#%d %s %s", index, p.FirstName, p.LastName)
}))
// Output:
// [#0 John Doe #1 Jane Doe]
}
func ExampleMakeMap() {
// Let's map book titles
type Book struct {
Title string
ID int
}
var mapBooksToStrings func([]Book, func(Book) string) []string
if err := funcs.MakeMap(&mapBooksToStrings); err != nil {
log.Fatal(err)
}
books := []Book{{"Les Misérables", 34043}, {"Germinal", 349439}}
fmt.Println(mapBooksToStrings(books, func(book Book) string {
return book.Title
}))
// Output:
// [Les Misérables Germinal]
}
func BenchmarkMap_MakeMap(b *testing.B) {
type Person struct {
Name string
Age int
}
var (
mapPersonsToNames func(persons []Person, mapper func(person Person) string) []string
persons = []Person{{"Joe", 18}, {"Kim", 29}, {"Jane", 38}, {"Jack", 24}, {"David", 79}}
)
if err := funcs.MakeMap(&mapPersonsToNames); err != nil {
b.Fatal(err)
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
_ = mapPersonsToNames(persons, func(person Person) string {
return person.Name
})
}
}
package platform import ( "github.com/Mparaiso/go-tiger/funcs" ) var ( mapStringsToStrings func([]string, func(string) string) []string _ = funcs.Must(funcs.MakeMap(&mapStringsToStrings)) )
}
return result + "\n]}\n"
}
var (
keyValuesByObjectID func(collection []reflect.Value, selector func(reflect.Value) bson.ObjectId) map[bson.ObjectId]reflect.Value
_ = funcs.Must(funcs.MakeKeyBy(&keyValuesByObjectID))
getKeys func(map[bson.ObjectId]reflect.Value) []bson.ObjectId
_ = funcs.Must(funcs.MakeGetKeys(&getKeys))
flatten func([][]interface{}) []interface{}
_ = funcs.Must(funcs.MakeFlatten(&flatten))
mapResultsToInterfaces func([]map[string]interface{}, func(map[string]interface{}) []interface{}) [][]interface{}
_ = funcs.Must(funcs.MakeMap(&mapResultsToInterfaces))
keyResultsBySourceID func(results []map[string]interface{}, mapper func(result map[string]interface{}) (id bson.ObjectId)) map[bson.ObjectId]map[string]interface{}
_ = funcs.Must(funcs.MakeKeyBy(&keyResultsBySourceID))
mapResultsToRelatedObjectIds func(results []map[string]interface{}, mapper func(result map[string]interface{}) bson.ObjectId) []bson.ObjectId
_ = funcs.Must(funcs.MakeMap(&mapResultsToRelatedObjectIds))
keyRelatedResultsByObjectID func(results []reflect.Value, mapper func(result reflect.Value) bson.ObjectId) map[bson.ObjectId]reflect.Value
_ = funcs.Must(funcs.MakeKeyBy(&keyRelatedResultsByObjectID))
mapInterfacesToObjectIds func([]interface{}, func(interface{}) bson.ObjectId) []bson.ObjectId
_ = funcs.Must(funcs.MakeMap(&mapInterfacesToObjectIds))
filter func([]bson.ObjectId, func(id bson.ObjectId) bool) []bson.ObjectId
_ = funcs.Must(funcs.MakeFilter(&filter))