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lastIndexOf

Returns the position (in the first argument) of the last occurrence of the second parameter. Returns -1 if there is no match.

Category

String

Function syntax

lastIndexOf(<parameters>)

Parameter

Parameter
Type
string
String
specified value
String

Signature and returned type

lastIndexOf(<string>,<string>)
Returns an integer.

Example

lastIndexOf("Hello, "l"))
Returns 3.
Explanation:
In "Hello", the last occurrence of “l” is at position 3.