Expected slice but got interface
WebNov 16, 2024 · wrong type for value; expected string; got []interface {} #899. Closed jeff-vanslyke opened this issue Nov 16, 2024 · 11 comments Closed wrong type for value; expected string; got []interface {} #899. jeff-vanslyke opened this issue Nov 16, 2024 · 11 comments Labels. logstash question Further information is requested. WebErrorf ( "redigo: unexpected negative value %v for Uint64", v) // Uint64 is a helper that converts a command reply to 64 bit unsigned integer. // If err is not equal to nil, then Uint64 returns 0, err. Otherwise, Uint64 converts the. func Uint64 ( reply interface {}, err error) ( uint64, error) {. n, err := strconv.
Expected slice but got interface
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WebApr 18, 2014 · An interface is two things: it is a set of methods, but it is also a type. The interface {} type (or any with Go 1.18+), the empty interface is the interface that has no methods. Since there is no implements keyword, all types implement at least zero methods, and satisfying an interface is done automatically, all types satisfy the empty interface. WebInside FindAll(), the model parameter is of interface{} type. You pass a value of []Album to it. It already wraps a slice value. db.Select() also expects an argument of interface type …
WebConsider unmarshalling to a slice of structs specific to the response data: type Tick struct { ID string Name string Symbol string Rank string Price_USD string ... and so on } var data []Tick err = json.Unmarshal (body, &data) "cannot unmarshal array into Go value of type main. Structure" Actually the problem is simple, we are trying to parse ... WebMay 4, 2015 · Since the tables are scanned into different structs i used a slice of empty interfaces to contain the struct and its corresponding string. This didn't work for me, …
WebOct 4, 2014 · 1 Answer Sorted by: 1 Use a type assertion. For example, package main import "fmt" func main () { m := map [string]interface {} {} m ["name"] = []interface {} {"One"} fmt.Println (m) name := m ["name"] fmt.Println (name) fmt.Printf ("%#v\n", name) for _, e := range name. ( []interface {}) { fmt.Println (e) } } Output: WebJan 13, 2024 · There is a difference between these two where log.Info (viper.Get ("NATS")) is called. While the hcl version returns a slice of maps, the yaml version returns a map: map [password:__psw__4433__ httpport:10044 port:10041 username:cl1]. go configuration viper-go Share Improve this question Follow edited Jan 13, 2024 at 15:17
WebJun 1, 2024 · If the function takes a []Base parameter, you must pass a []Base parameter. Not a []interface{}, not a []thingThatImplementsBase, but specifically a []Base.A slice of interfaces isn't an interface - it isn't "implemented by" a slice of any other type. The elements of a slice of interfaces can be anything that implements the interface, but the …
WebNov 5, 2024 · Inside FindAll (), the model parameter is of interface {} type. You pass a value of []Album to it. It already wraps a slice value. db.Select () also expects an argument of … lahiguera netWebDec 27, 2024 · 862. 1.4 miles away from Little Italy Pizza. Discover Oleato™ beverages at Starbucks Reserve® Roasteries. Experience the alchemy of Starbucks Reserve® coffee infused with Partanna® olive oil. Learn More read more. in Cocktail Bars, Beer Bar, Pizza. lahi hsn codeWebJun 1, 2016 · If it is expected that many elements will be selected, it might be profitable to allocate a "big" ret slice beforehand, and use simple assignment instead of the append(). And before returning, slice the ret to have a length equal to the number of selected elements. Note #2: je l'aime a mourir karaokeWebOct 30, 2015 · RawBytes is a byte slice that holds a reference to memory owned by the database itself. After a Scan into a RawBytes, the slice is only valid until the next call to Next, Scan, or Close. – Wayne Oct 30, 2015 at 16:14 Thanks, when I used []byte instead of Rawbytes, it is been OK. – Venser Lin Nov 4, 2015 at 10:57 Add a comment Your Answer jelai maknaWebAug 13, 2024 · Thank You much. I'm reading a JSON file and unmarshalling to the interface. I get a slice of interfaces, then I loop through the slice and convert to map[string]interface using y: = s.Index(i).Interface().(map[string]interface{}). I think I'm losing structure when I do that. Is there a better way to do it. – je l'aime a mourir shakira karaokéWebSep 4, 2024 · Since Go 1.18 one can use Generics to tackle the issue. First we can modify the GreetHumans function to use Generics and therefore not require any casting at all: func GreetHumans [T Human] (humans []T) { for _, h := range humans { fmt.Println ("Hello " + h.Name ()) } } This makes it possible to pass the heroes slice into the GreetHumans ... je l'aime a mourir shakira mp3 downloadWebAug 8, 2016 · I got a bug in Go when using an interface{} as function parameter type, when given a non-pointer type, and using json.Unmarshal with it. Because a piece of code is worth a thousand words, here is an ... Expected slice but got interface. 1. How to declare the Type of a variable dynamically in GO, using if-else-like conditions?-2. lahiguera-net