item
is the first entry in the array
, the return value
will be zero.
If the item does not appear in the array, -1 is returned. If it appears multiple times, the index of its first appearance is returned.
If indexOf(array, item)==n
, then
array[n]
is equal to item
.
Note:
This documents the Object
version of the routine.
Corresponding routines exist for other data types
(double
, float
, long
,
int
, short
).
item
in array
,
or -1indexOf(stringArray("QSO", "BCG", "SNR"), "BCG")
= 1
indexOf(stringArray("QSO", "BCG", "SNR"), "TLA")
= -1