You want to append to total_buildings, but you are redefining total_buildings in your strings.Split call.
Store the result of strings.Split into something else (or call it directly in the range), and total_buildings = append(total_buildings, i) in that range loop.
#I need help with adding output to an array
zinc elm
next lintel
You want to append to `total_buildings`, but you are redefining `total_buildings...
the problem is, i dont want to add i to my array, i want the output of the strings.split
this is what i get now
zinc elm
for _, value := strings.Split(whatever) {
total_buildings = append(total_buildings, value)
}```I forgot that there is an iterator value there that is preferred when you do the one var version of range.
next lintel
I dont think i can do it
zinc elm
Do what?
zinc elm
I'm not really clear on what the file contains, and what you want out of it.
Maybe give examples of those?
next lintel
GebouwA=100=GebouwB=150=GebouwC=80
GebouwD=1000
this is what the file contains
so what the for scanner.scan loop does, it reads the first line of code and stores it in ..., then it checks the second line of code but when i want to add that to the array
it overwrites
zinc elm
What do you want that array to contain in the end?
next lintel
GebouwA,100,GebouwB,150,GebouwC,80,GebouwD,1000
but what it gives me is GebouwD,1000
zinc elm
Right-right. If you get stuck, let me know.
zinc elm
Nice!
next lintel
but
is there not a way to simplify this:
for scanner.Scan() {
var tijdelijk []string = strings.Split(scanner.Text(), "=")
for i := range tijdelijk {
total_buildings = append(total_buildings, tijdelijk[i])
}
}
There is.
next lintel
i tried putting the strings,split in range but didnt know how to append the output
zinc elm
scanner := bufio.NewScanner(file)
for scanner.Scan() {
fragments := strings.Split(scanner.Text(), "=")
total_buildings = append(total_buildings, fragments...) // The ... means it unpacks the slice into arguments given to append
}
i still dont understand the ...
zinc elm
The first argument to append is the original slice, right?
next lintel
yeah
zinc elm
The following millions and millions of arguments will get appended to that slice, and the result returned.
zinc elm
So the fragments... tells Go you don't want to append the slice as a slice, but as separate arguments to append.
zinc elm
Yes. This "trick" works for any function that takes a variable number of arguments, like append does.
next lintel
i see, thanks alot man!
zinc elm
Sure thing.
next lintel
i really appreciate it ❤️