EachKey panics on invalid JSON payload

[xxuejie]

Following code would first result in an err, then would panic:

package main

import (
	"fmt"
	"github.com/buger/jsonparser"
)

func main() {
	data := `{"id":`

	jsonparser.EachKey([]byte(data), func(idx int, value []byte, vt jsonparser.ValueType, currentErr error) {
		if currentErr != nil {
			fmt.Printf("Error: %v\n", currentErr)
			return
		}
		fmt.Printf("idx: %d value: %s\n", idx, string(value))
	}, []string{"id"}, []string{"method"}, []string{"params"})
}

Maybe this is similar to #100?

[gladkikhartem]

I've found error output not being checked from Get method here https://github.com/buger/jsonparser/blob/master/parser.go#L410
adding simple
if e != nil {
return -1
} helped me