Description
Returns the index within a string of the last occurrence of the specified substring. Returns the index of the last match of the str2 in str1 or -1 if str2 is nowhere to be found in str1.
Parameters
Return Type
Number
Examples
Example 1
wret = lastIndexOf("f1/f2/f3", "/f");
print("Return " + wret);
Print Return 5
Example 2
wret = lastIndexOf("f1/f2/f3", "/fi");
print("Return " + wret);
Print Return -1
Example 3
wret = lastIndexOf("f1/f2", "");
print("Return " + wret);
Print Return 5
The last occurrence of the empty string "" is considered to occur at the index value str1.length().
If you need to find str2 multiple times use substring() routine.