Method # Arrays.FirstRowIndex ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Warning
This item was deprecated in version 2020r2. Please use `Arrays.FirstIndex` as a replacement.
## Description Returns the index of the first row of the array. ## Usage *result* = *array*.**FirstRowIndex** | 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 FirstRowIndex 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. ``` xojo For i As Integer = names.FirstRowIndex To names.LastRowIndex If names(i) = "X" Then names(i) = "Y" End If Next ``` ## Compatibility All project types on all supported operating systems. ## See also `Arrays` parent class; `Var` statement; `Arrays` concept, `ParamArray` keyword, `Arrays.LastIndex` method