What is the JavaScript equivalent of var_dump or print_r in PHP?

For scalar variables:

console.log(object);

For objects:

console.log( JSON.stringify(object) );

On caniuse.com you can view the browsers that support natively the JSON.stringify function:http://caniuse.com/json

You can also use the Douglas Crockford library to add JSON.stringify support on old browsers:https://github.com/douglascrockford/JSON-js

I hope this helps...

example

function(alias){ 
     alert(alias);
     console.log( JSON.stringify(alias)); 
     alert(alias.zone_alias); 
}