panic: runtime error: index out of range in Go
Tag : go , By : user150744
Date : March 29 2020, 07:55 AM
seems to work fine If the user does not provide any input, the inp array is empty. This means that even the index 0 is out of range, i.e. inp[0] can't be accessed. You can check the length of inp with len(inp) before checking inp[0] == "add". Something like this might do: if len(inp) == 0 {
fmt.Println("you didn't type add")
} else if inp[0] == "add" {
fmt.Println("you typed add")
}
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Download Log Files from AWS S3 panic: runtime error:
Date : March 29 2020, 07:55 AM
To fix this issue You're passing nil to s3manager.NewDownloader where it requires a Session sess := session.New()
manager := s3manager.NewDownloader(sess)
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Panic: runtime error: index out of range
Tag : go , By : Joshua Johnson
Date : March 29 2020, 07:55 AM
this one helps. [...]int{1,2,3} is not a slice. It is an array of capacity 3. See " golang-101-hacks: Array" package main
import "fmt"
func main() {
s := [...]int{1, 2, 3}
t := rev(s[:])
fmt.Println(s)
fmt.Println(t)
}
func rev(input []int) []int {
var j int
l := len(input) - 1
for i := 0; i <= l; i++ {
j = input[l-i]
input = append(input, j)
}
return input
}
[1 2 3]
[1 2 3 3 2 1]
var j int
var res []int
l := len(input) - 1
for i := 0; i <= l; i++ {
j = input[l-i]
res = append(res, j)
}
return res
[1 2 3]
[3 2 1]
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Error serializing JSON parsing - Decoding
Tag : ios , By : user181945
Date : March 29 2020, 07:55 AM
I hope this helps . I'm having problems using swift 4 to decode and parse this JSON file data. I don't know how to structure my structs at the bottom of the code, so that they can cycle through my data of array dictionaries. ie. data[0], data[1], data[2] and so on. This is the error I encounter: , Problem I am seeing in your response is data: [] {
_id: 100284,
poster: "urlstring",
title: "Happy!"
}
let show = try
JSONDecoder().decode(RecentTvList.self, from: data)
let show = try
JSONDecoder().decode(RecentTvListData.self, from: data)
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panic: runtime error: index out of range 1
Date : March 29 2020, 07:55 AM
I wish did fix the issue. i can not figure out this problem ,anyone can help? , finally i figure this out XD! type obj struct {
Targets []string `json:"targets"`
Labels map[string]string `json:"labels"`
}
func main() {
// Creating simulation
var myobj = []*obj{}
n := new(obj)
n.Targets = append(n.Targets, "10.0.0.1")
n.Labels = make(map[string]string)
n.Labels["job"] = "db2"
myobj = append(myobj, n)
k := new(obj)
k.Targets = append(k.Targets, "192.168.1.12")
k.Targets = append(k.Targets, "192.168.1.13")
k.Labels = make(map[string]string)
k.Labels["job"] = "mysql"
myobj = append(myobj, k)
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