How to pass array of channels
I am trying to pass a array of channels to the method " func Data(channel chan<- Book)" , however I encouter an error which states ( channel[0] (type chan<- Book does not support indexing)") I understand what it means, but isn't there a way to pass an the array ? If so what alternatives do I have
func Data(channel chan<- Book) {
var data EData
data = ReadJSONFile("Data.json")
go Writer(data.BookStores[0].Central, channel[0]) // at this
// place I get "invalid operation: channel[0] (type chan<- Book
// does not support indexing)"
}
go
edited Nov 21 '18 at 7:01
Flimzy
37.8k96497
asked Nov 20 '18 at 19:27
vincentevincente
1
add a comment |
I am trying to pass a array of channels to the method " func Data(channel chan<- Book)" , however I encouter an error which states ( channel[0] (type chan<- Book does not support indexing)") I understand what it means, but isn't there a way to pass an the array ? If so what alternatives do I have
func Data(channel chan<- Book) {
var data EData
data = ReadJSONFile("Data.json")
go Writer(data.BookStores[0].Central, channel[0]) // at this
// place I get "invalid operation: channel[0] (type chan<- Book
// does not support indexing)"
}
go
edited Nov 21 '18 at 7:01
Flimzy
37.8k96497
asked Nov 20 '18 at 19:27
vincentevincente
1
1
Possible duplicate of How to allocate an array of channels
– Rene Knop
Nov 20 '18 at 19:52
add a comment |
I am trying to pass a array of channels to the method " func Data(channel chan<- Book)" , however I encouter an error which states ( channel[0] (type chan<- Book does not support indexing)") I understand what it means, but isn't there a way to pass an the array ? If so what alternatives do I have
func Data(channel chan<- Book) {
var data EData
data = ReadJSONFile("Data.json")
go Writer(data.BookStores[0].Central, channel[0]) // at this
// place I get "invalid operation: channel[0] (type chan<- Book
// does not support indexing)"
}
go
edited Nov 21 '18 at 7:01
Flimzy
37.8k96497
asked Nov 20 '18 at 19:27
vincentevincente
1
I am trying to pass a array of channels to the method " func Data(channel chan<- Book)" , however I encouter an error which states ( channel[0] (type chan<- Book does not support indexing)") I understand what it means, but isn't there a way to pass an the array ? If so what alternatives do I have
func Data(channel chan<- Book) {
var data EData
data = ReadJSONFile("Data.json")
go Writer(data.BookStores[0].Central, channel[0]) // at this
// place I get "invalid operation: channel[0] (type chan<- Book
// does not support indexing)"
}
go
go
edited Nov 21 '18 at 7:01
Flimzy
37.8k96497
asked Nov 20 '18 at 19:27
vincentevincente
1
edited Nov 21 '18 at 7:01
Flimzy
37.8k96497
asked Nov 20 '18 at 19:27
vincentevincente
1
edited Nov 21 '18 at 7:01
Flimzy
37.8k96497
edited Nov 21 '18 at 7:01
Flimzy
37.8k96497
edited Nov 21 '18 at 7:01
Flimzy
37.8k96497
37.8k96497
asked Nov 20 '18 at 19:27
vincentevincente
1
asked Nov 20 '18 at 19:27
vincentevincente
1
asked Nov 20 '18 at 19:27
vincentevincente
1
1
1
Possible duplicate of How to allocate an array of channels
– Rene Knop
Nov 20 '18 at 19:52
add a comment |
1
Possible duplicate of How to allocate an array of channels
– Rene Knop
Nov 20 '18 at 19:52
1
1
Possible duplicate of How to allocate an array of channels
– Rene Knop
Nov 20 '18 at 19:52
Possible duplicate of How to allocate an array of channels
– Rene Knop
Nov 20 '18 at 19:52
add a comment |
2 Answers
2
active
oldest
votes
The proper type to pass a slice of channels of Book elements is:
chan<- Book
The code in your original question is for a channel of Book slices.
answered Nov 20 '18 at 19:30
Tim CooperTim Cooper
119k31237225
add a comment |
chan<- Book needs to become chan<- Book. modifies the type after it in go, so if you want an array of channels, put it before chan.
func Data(channel chan<- Book) {
var data EData
data = ReadJSONFile("Data.json")
go Writer(data.BookStores[0].Central, channel[0])
// ...
}
Test: https://play.golang.org/p/sQt3VawvhoI
answered Nov 20 '18 at 19:54
Frank BryceFrank Bryce
5,02131842
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
The proper type to pass a slice of channels of Book elements is:
chan<- Book
The code in your original question is for a channel of Book slices.
answered Nov 20 '18 at 19:30
Tim CooperTim Cooper
119k31237225
add a comment |
The proper type to pass a slice of channels of Book elements is:
chan<- Book
The code in your original question is for a channel of Book slices.
answered Nov 20 '18 at 19:30
Tim CooperTim Cooper
119k31237225
add a comment |
The proper type to pass a slice of channels of Book elements is:
chan<- Book
The code in your original question is for a channel of Book slices.
answered Nov 20 '18 at 19:30
Tim CooperTim Cooper
119k31237225
The proper type to pass a slice of channels of Book elements is:
chan<- Book
The code in your original question is for a channel of Book slices.
answered Nov 20 '18 at 19:30
Tim CooperTim Cooper
119k31237225
answered Nov 20 '18 at 19:30
Tim CooperTim Cooper
119k31237225
answered Nov 20 '18 at 19:30
Tim CooperTim Cooper
119k31237225
answered Nov 20 '18 at 19:30
Tim CooperTim Cooper
119k31237225
119k31237225
add a comment |
add a comment |
chan<- Book needs to become chan<- Book. modifies the type after it in go, so if you want an array of channels, put it before chan.
func Data(channel chan<- Book) {
var data EData
data = ReadJSONFile("Data.json")
go Writer(data.BookStores[0].Central, channel[0])
// ...
}
Test: https://play.golang.org/p/sQt3VawvhoI
answered Nov 20 '18 at 19:54
Frank BryceFrank Bryce
5,02131842
add a comment |
chan<- Book needs to become chan<- Book. modifies the type after it in go, so if you want an array of channels, put it before chan.
func Data(channel chan<- Book) {
var data EData
data = ReadJSONFile("Data.json")
go Writer(data.BookStores[0].Central, channel[0])
// ...
}
Test: https://play.golang.org/p/sQt3VawvhoI
answered Nov 20 '18 at 19:54
Frank BryceFrank Bryce
5,02131842
add a comment |
chan<- Book needs to become chan<- Book. modifies the type after it in go, so if you want an array of channels, put it before chan.
func Data(channel chan<- Book) {
var data EData
data = ReadJSONFile("Data.json")
go Writer(data.BookStores[0].Central, channel[0])
// ...
}
Test: https://play.golang.org/p/sQt3VawvhoI
answered Nov 20 '18 at 19:54
Frank BryceFrank Bryce
5,02131842
chan<- Book needs to become chan<- Book. modifies the type after it in go, so if you want an array of channels, put it before chan.
func Data(channel chan<- Book) {
var data EData
data = ReadJSONFile("Data.json")
go Writer(data.BookStores[0].Central, channel[0])
// ...
}
Test: https://play.golang.org/p/sQt3VawvhoI
answered Nov 20 '18 at 19:54
Frank BryceFrank Bryce
5,02131842
answered Nov 20 '18 at 19:54
Frank BryceFrank Bryce
5,02131842
answered Nov 20 '18 at 19:54
Frank BryceFrank Bryce
5,02131842
answered Nov 20 '18 at 19:54
Frank BryceFrank Bryce
5,02131842
5,02131842
add a comment |
add a comment |
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1
Possible duplicate of How to allocate an array of channels
– Rene Knop
Nov 20 '18 at 19:52