Created
June 18, 2021 06:40
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Merge empty fields. (Golang)
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| package main | |
| import ( | |
| "fmt" | |
| "reflect" | |
| ) | |
| type Person struct { | |
| Name string | |
| Age int | |
| Positions []Position | |
| } | |
| type Position struct { | |
| Name string | |
| } | |
| func main() { | |
| data := data() | |
| data1 := data1() | |
| val := reflect.ValueOf(data).Elem() | |
| val1 := reflect.ValueOf(data1) | |
| for i := 0; i < val.Type().NumField(); i++ { | |
| if val.Field(i).IsZero() { | |
| f := val.FieldByName(val.Type().Field(i).Name) | |
| r := val1.FieldByName(val.Type().Field(i).Name) | |
| f.Set(r) | |
| } | |
| } | |
| fmt.Println(data) | |
| } | |
| func data() *Person { | |
| return &Person{} | |
| } | |
| func data1() Person { | |
| var pos []Position | |
| pos = append(pos, Position{ | |
| Name: "Mongo", | |
| }) | |
| pos = append(pos, Position{ | |
| Name: "Golang", | |
| }) | |
| return Person{ | |
| Name: "Umidjon", | |
| Age: 82, | |
| Positions: pos, | |
| } | |
| } |
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