July 1998
Intermediate to advanced
1456 pages
65h 5m
English
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Name
lastIndexOf() — NN 2 IE J1 ECMA 1
Synopsis
lastIndexOf(searchString[,startPositionIndex])
Returns a zero-based integer of the position within the current
string object where the searchString
parameter starts. This method works like the
indexOf() method but begins all searches from the
end of the string or some index position. Even though searching
starts from the end of the string, the
startPositionIndex parameter is based on
the start of the string, as is the returned value. If there is no
match, the returned value is -1.
Returned Value
Integer.
Parameters
-
searchString A string to look for in the current string object.
-
startPositionIndex A zero-based integer indicating the position within the current string object to begin the search of the first parameter. Even though the search starts from the end of the string, this parameter value is relative to the front of the string.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.