Self memoizing JavaScript function

self-memoizing.js

// Naming an otherwise anonymous function creates the named reference inside the 
// function's scope. We use `cache` as the internal name
var selfMemoizing = function cache(input) { 
  
  // Let's prepare a cache object called "memoize" if not available
  cache.memoized = cache.memoized || {}
  
  // Return the cached result if available
  if (cache.memoized[input]) return cache.memoized[input]
  
  // Create the cache at the time of returning the result
  return cache.memoized[input] = input + " remembered!"
}

// That's it! Short, sweet, with no dependencies and no closures. You can even 
// prepare the memoization to work with several arguments using a "multidimensional" 
// object structure.