September 2013
Intermediate to advanced
652 pages
15h 5m
English
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Chapter 9
Data Tables
Working with Data Table Objects
Before you can work with a data table or with objects in a data table, you must first open the data table and assign a reference to it. In this book, dt represents a reference to a data table object.
To manipulate an object in JSL, you send a message to the reference that represents the object, asking the object to perform one of its tasks. Messages are commands that can be understood only in context by a particular type of object. For example, messages for data table objects include Save, New Column, Sort, and so on. Most of these messages would not make sense for another object, such as a platform object.
In this chapter, you can learn:
• How to assign a reference to a data table
• How ...
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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.