[Gambas-user] Would an ArrayList datatype be helpful for gambas users?
T Lee Davidson
t.lee.davidson at gmail.com
Mon Sep 11 17:37:04 CEST 2023
On 9/11/23 04:18, Gianluigi wrote:
> You made me want to check out Bjarne Stroustrup's book.
> Slice is well explained, unfortunately it is 'way' beyond my mental capabilities.
I have to doubt, Gianluigi, that slices are beyond your comprehension. They are actually not complex. Perhaps that book's
explanation was rather convoluted.
A slice is, simply stated, a limited view of an array.
Suppose we could do this:
Dim aStrings As String = ["one", "two", "three", "four", "five", "six", "seven"]
Dim aSlice As Slice = aStrings.Slice(2, 3) ' Syntax equals Slice(startIndex, Length) [ Except in Python :-\ ]
The slice's view of the underlying array would consist of only the values ["three", "four", "five"] and would be indexed
starting at zero.
Print aSlice ' Would print "four"
Since a slice is not a copy of a subset of an array (but holds a reference to the underlying array), changing a value in the
slice also changes the referenced value in the array:
aSlice = "nine"
' aStrings now equals ["one", "two", "three", "nine", "five", "six", "seven"]
See? Simple. (But, I may not have explained it very well either.)
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