Using the console API

The Firebug console API allows javascript programs to write to the console (along with a few other tricks). It is available for use, but is disabled by default. To enable it, use the following code:

var engine = new Jurassic.ScriptEngine();
engine.SetGlobalValue("console", new Jurassic.Library.FirebugConsole(engine));

Here's an example of using the console object within JavaScript:

var x = 15, y = 'test';
console.log('X is %i, Y is %s', x, y);

This prints "X is 15, Y is test" to the console.

Only a subset of the functionality of the Firebug console API is available at this time. The available functions are:

• log
• debug
• info
• warn
• error
• assert
• group
• groupEnd
• time
• timeEnd

In addition, only the following format string specifiers are supported:

Specifier	Type
%s	string
%d	integer
%i	integer
%f	floating point number

Next tutorial: Calling a single .NET method from JavaScript