The JavaScript array lastIndexOf() method is used to search the specified element in the given array and returns the index of the last match.
Syntax:
array.lastIndexOf (element,index)
Parameters:
element: It is a required parameter and represents the element that has to be searched.
index: It is an optional parameter and represents the index position from where the search starts.
Returns:
Index of the last match for a specific element.
Example:
<!DOCTYPE html> <html> <head> </head> <body> <script> var a = ["GOLD","RUBY","DIAMOND","RUBY","PLATINUM"] var result= a.lastIndexOf("RUBY"); document.writeln(result); </script> </body> </html>