Shortcode does work! I missed the part where it needs the space between the words roomlcoud and hotel:
[roomcloud hotel=’###’]
In regards of the +function(){}; my bad! I missed the part where:
`It forces the parser to treat the part following the + as an expression. This is usually used for functions that are invoked immediately, e.g.:
+function() { console.log(“Foo!”); }();
Without the + there, if the parser is in a state where it’s expecting a statement (which can be an expression or several non-expression statements), the word function looks like the beginning of a function declaration rather than a function expression and so the () following it (the ones at the end of the line above) would be a syntax error (as would the absense of a name, in that example). With the +, it makes it a function expression, which means the name is optional and which results in a reference to the function, which can be invoked, so the parentheses are valid.
+ is just one of the options. It can also be -, !, ~, or just about any other unary operator. Alternately, you can use parentheses (this is more common, but neither more nor less correct syntactically):
(function() { console.log(“Foo!”); })();
// or
(function() { console.log(“Foo!”); }());`
