B4J Question Is there an internal index for For Each?

[Bruce Axtens]

Given this code

For Each p  As Proxy In Main.proxyList
  If p.ip = p Then
    p.efficacy = p.efficacy + 1
    p.inuse = False
    Exit
  End If
Next

It would seem pretty hard to update the Main.proxyList List if one were using

Main.proxyList.Set(pos,p)

as there's no way of knowing what `pos` might be. If I were to have a counter variable could I be sure that For Each was iterating from top to bottom? Is there an alternative or should I, in cases like this be doing

For pos = 0 To Main.proxyList.Size -1
  proxyRec = Main.proxyList.Get(pos)
  If proxyRec.ip = ip Then
    proxyRec.efficacy = proxyRec.efficacy + 1
    proxyRec.inuse = False
    Main.proxyList.Set(pos,proxyRec)
    found = True
    Exit 
  End If
Next

?

 

[Erel]

There is no internal index.

In case of Lists the For Each order goes from index 0 to size - 1.

 

[EnriqueGonzalez]

May be instead of using a list or in this case 2 lists, you could pair the proxy as key and the pos as value in a map.

For each p as proxy in proxies.keys 
Dim pos as int = Proxies.get(p) 
Next

Something like that.

 

[Bruce Axtens]

Interesting thought that. Thanks.