October 2011
Beginner to intermediate
448 pages
9h 25m
English
Content preview from HTML5 and JavaScript ProjectsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Critical Requirements
The critical requirements for this project include constructing a framework for manipulating objects on the screen, including detecting mouse events on the objects, deleting objects and creating copies of objects. The current framework provides a way to specify rectangles, ovals, hearts and images, but the approach can accommodate other shapes and this is an important lesson of the chapter.
The objective is for the drag and drop operations to be reasonably precise: not merely moving something from one region of the window to another. I will re-visit this topic in the Chapters 8 and 9 on making jigsaw puzzles.
I also made the decision to control the look of the cursor. The cursor when the mouse is not on the canvas is the ...
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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.