Question:
Assuming:
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$columnArray = @( @{Name='COL_A';Type=[int];Measurements=@()}, @{Name='COL_B';Type=[string];Measurements=@()}, @{Name='COL_C';Type=[datetime];Measurements=@()} ) |
Using the Where-Object command to get COL_B‘s Measurements array:
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($Fields | ? { $_.Name -eq 'COL_B' }).Measurements |
Is there a more-succinct way of doing this? Would a nested set of PSCustomObjects be a better approach?
Answer:
If you are interested in looking element by key, than Hashtable will be better approach than array.
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$columnHashtable=@{ COL_A=@{Type=[int];Measurements=@()} COL_B=@{Type=[string];Measurements=@()} COL_C=@{Type=[datetime];Measurements=@()} } |
With Hashtable you can get Measurements array of COL_B by this command:
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$columnHashtable.COL_B.Measurements |
And If you want to enumerate all elements in Hashtable, then you can use following command:
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$columnHashtable.GetEnumerator()|ForEach-Object ... |
In case if order of elements in hash table matters, you could use [ordered] operator before hash table literal to create OrderedDictionary instead of Hashtable.