${} in backtick

Types: number, string, boolean, object, function, undefined

Function definition for the variable square that takes a parameter x

var square = function(x) { };

Function declaration for the variable square that takes a parameter x

function square(x) {}

A function that has no return statement returns what value?

undefined

A function that has a return statement without a value returns what value?

undefined

When calling a function, missing parameters are assigned what value?

undefined