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lastIndexOf() Function

Introduced in version 1.3b48
Finds the index in a string of the last occurrence of a substring in a string. If the substring does not occur in the string then -1 is returned. The index for the string starts at 0.


lastIndexOf(str, substr)


[lastIndexOf("abcde", "c")]

Returns 2

[lastIndexOf("abcde", "z")]
Returns -1