Recursive print for Javascript.

gistfile1.js

function print_r( data, key, level ) {
	if( key !== 0 ) {
		key = key || false;
	}
	level = level || 0;
	if( _.isArray( data ) ) {
		if( typeof key === 'boolean' ) {
			print_r('[', false, level);
		} else {
			print_r(key + ': [', false, level);
		}
		_.each( data, function( value, index ) {
			print_r( value, index, level+1);
		});
		print_r(']', false, level);
	} else if ( _.isObject( data ) ) {
		if( typeof key === 'boolean' ) {
			print_r('{', false, level);
		} else {
			print_r(key + ': {', false, level);
		}
		_.each( data, function( value, key ) {
			print_r( value, key, level+1 );
		});
		print_r('}', false, level);
	} else {
		var space = '';
		while( level > 0 ) {
			space += '  ';
			level--;
		}
		if( typeof key === 'boolean' ) {
			print( space + data + "\n" );
		} else if( _.isString(data) ) {
			print( space + key + ': "' + data + '"' +  "\n" );
		} else if( typeof data === 'boolean' ) {
			print( space + key + ': [boolean] ' + data + "\n" );
		} else {
			print( space + key + ': ' + data + "\n");
		}
	}
}

Note that this depends on Underscore or LoDash