This sample is for changing from “float64” to “int” for values did unmarshal using map[string]interface{}. When it did unmarshal using map[string]interface{}, a number with “int” was changed to “floa
This sample is for changing from “float64” to “int” for values did unmarshal using map[string]interface{}
.
When it did unmarshal using map[string]interface{}, a number with “int” was changed to “float64”. And it shows an error as follows.
Error :
panic: interface conversion: interface {} is float64, not int
Sample Script : It solves using following script.
package main import (
"encoding/json"
"fmt"
"reflect"
) func main() {
data := `{"key": 10}`
var i map[string]interface{}
json.Unmarshal([]byte(data), &i) val1 := i["key"]
fmt.Printf("%v, %v\n", val1, reflect.TypeOf(val1)) // 10, float64 i["key"] = int(i["key"].(float64))
val2 := i["key"]
fmt.Printf("%v, %v\n", val2, reflect.TypeOf(val2)) // 10, int
This sample is for changing from “float64” to “int” for values did unmarshal using map[string]interface{}. When it did unmarshal using map[string]interface{}, a number with “int” was changed to “floa的更多相关文章
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