Flash Player 5.
my_str
.indexOf(
substring,
[startIndex
])
substring
An integer or string specifying the substring to be searched for within my_str
.
startIndex
An integer specifying the starting point in my_str
to search for substring. This parameter is optional.
The position of the first occurrence of the specified substring, or -1.
Method; searches the string and returns the position of the first occurrence of the specified substring
. If the value is not found, the method returns -1.