[removed] How do I print a message to the error console?

Question

How can I print a message to the error console, preferably including a variable?

For example, something like:

print(\'x=%d\', x);

Answer 1

console.log("your message here");

working for me.. i'm searching for this.. i used Firefox. here is my Script.

 $('document').ready(function() {
console.log('all images are loaded');
});

works in Firefox and Chrome.