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Initializing Slice of type Struct in Golang


By : Rabbits
Date : October 01 2020, 01:00 AM
this will help Use a composite literal and take its address in the loop:
code :
for i := range obj {
    obj[i] = &mystruct{Power: i}
}


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Golang cannot use as type struct array or slice literal


By : jjallen
Date : March 29 2020, 07:55 AM
wish help you to fix your issue Your ContentResp type is a slice, not a struct, yet you're treating it as a struct when you use a composite literal trying to create a value of it:
code :
type ContentResp []struct {
    // ...
}
type ContentResp struct {
    Name        string `json:"name"`
    ContentType string `json:"type"`
    DownloadURL string `json:"download_url"`
}

var contentResps []ContentResp
for _, cont := range contentResp {
    append(contentResp, ...)
}
    contentResps = append(contentResps, ...)

How to use Golang Reflection to get the type of a struct field that is a slice?


By : user6506144
Date : March 29 2020, 07:55 AM
it should still fix some issue A slice type given in a type literal like []Foo is an unnamed type, hence Type.Name() returns an empty string "".
Use Type.String() instead:
code :
t := f.Type().String()
Name: Status  Kind: int  Type: main.StatusVal
Name: FSlice  Kind: slice  Type: []main.Foo

initializing a struct containing a slice of structs in golang


By : Eric Provenzano
Date : March 29 2020, 07:55 AM
I wish this helpful for you You can use make() to allocate the slice in "full-size", and then use a for range to iterate over it and fill the numbers:
code :
tmp := make([]LuckyNumber, 10)
for i := range tmp {
    tmp[i].number = rand.Intn(100)
}
a := Person{tmp}
fmt.Println(a)

Initializing an empty array of struct type in golang


By : cubikrube
Date : March 29 2020, 07:55 AM
hope this fix your issue Here you have a zero-length slice, the len and cap functions will both return 0 for a zero-valued slice
code :
var day []DayAndTime
day = append(day, DayAndTime{"Monday", "8.00 PM"})
var day = make([]DayAndTime, 1)
day[0] = DayAndTime{"Monday", "8.00 PM"}
package main

import (
    "fmt"
)

type DayAndTime struct {
    days string
    time string
}

func ZeroLength() {
    var day = []DayAndTime{}
    fmt.Println("Hello, playground", cap(day), len(day), day)
}

func AppendArray() {
    var day = []DayAndTime{}
    day = append(day, DayAndTime{"Monday", "8.00 PM"})
    fmt.Println("Hello, playground", cap(day), len(day), day)
}

func SetIndex() {
    var day = make([]DayAndTime, 1)
    day[0] = DayAndTime{"Monday", "8.00 PM"}
    fmt.Println("Hello, playground", cap(day), len(day), day)
}

func main() {
    ZeroLength()
    AppendArray()
    SetIndex()
}

Slice of struct can't be plugged into slice of interface in golang


By : Mia
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further Go does not have any fanciness around slices and types. Put simply, if you say you are going to return []TableAbstruct, you have to return that exactly. So if you want to return a []Tag, you have to create a slice of []TableAbstruct and then go populate it manually:
code :
func Xxx() []TableAbstruct {
  var returnValue []TableAbstruct
  for _, t := range result {
    returnValue = append(returnValue, t)
  }
  return returnValue
}
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