Ways around "x || exception" in JS

thoughts.js

// Problem: This doesn't work
// true || throw new Error('some_var not defined')
// > Uncaught SyntaxError: Unexpected token throw

// I would approach this by creating another function, either for 
// after the ||, or to wrap the whole thing. It's not exactly ideal
// but it feels idiomatic in a functional language.

//--
// Suggestion 1: Define a wrapper function for throw
//--

// Either a basic one that takes a string
raise = function(msg) {  throw new Error(msg) }
true || raise("some_var not defined")

// One that takes an error
raise = function(error) {  throw error }
true || raise(new Error("some_var not defined"))

// Or one that can take either - I'm not sure of whether you would 
// want different errors raised etc. I don't know JS well enough for that.
raise = function(error) { 
  if(typeof(error) == "string")
    throw new Error(error) 
  else
    throw error
}
true || raise("some_var not defined")
true || raise(new Error("some_var not defined"))

//--
// Suggestion 2: Wrap the whole thing in a function
//--

do_or_throw = function(thing, msg) {
  if(typeof(thing) == "function") { thing = thing() }
  if(thing) { return thing }
  throw new Error(msg)
}
do_or_throw(function() { return true }, "some_var not defined") // Where you want to pass a function, or have a computation
do_or_throw(true, "some_var not defined") // Where you're not evaluating anything