Arrays.FirstIndex
From Xojo Documentation
Method
Returns the index of the first element of the array.
Usage
result = array.FirstIndex
| Part | Type | Description |
|---|---|---|
| result | Integer | The starting index of the array. |
| array | Array of any data type | The array whose first element number you want. |
Notes
The FirstIndex function is used to determine the first element of an array. This is especially useful for writing code that loops through arrays so that you don't have to be aware of whether an array begins at 0 or 1 (they all begin at 0).
Arrays can have a maximum index value of 2,147,483,646.
Sample Code
This code loops through an array and replaces each occurrence of X in an array with Y.
For i As Integer = names.FirstIndex To names.LastIndex
If names(i) = "X" Then
names(i) = "Y"
End If
Next
If names(i) = "X" Then
names(i) = "Y"
End If
Next
See Also
Var statement; Arrays concept, ParamArray keyword, Arrays.LastIndex method