With User Defined Types you can specify types of data in data structures. So for example, we can create our own data type ...

JavaScript’s loose data typing differs from C and Java, which both use strict data typing. What this means is that in JavaScript, you don’t need to declare a variable type.

ManyEyes is a neat tool that produces compelling visualizations based on user-defined data sets, with data types ranging from statistics tables to any old block of text. Making your own ...