@homeofthings/node-utils

@homeofthings/node-utils

• AsyncContext<T>: little wrapper around AsyncLocalStorage providing default value

  asyncContext = new AsyncContext(defaultContext);
  ...
  asyncContext.set(newContext)
  ...
  currentContext = asyncContext.get();
  
  

• sequentialize: run Promises in sequence

  await sequentialize(item.map(() => doWork(item)));
  

• wait: wait until a condition is true or timed out

  await wait(condition); // polls until condition is true
  await wait(condition, 1000);  // polls until condition is true or timed out after 1000ms
  

• LruCache<T>: LRU cache

  cache = new LruCache<UserSession, number>(SESSION_CACHE_SIZE);
  
  cache.set(id, userSession); // add this to the cache and mark it as least recently used
  ...
  cache.get(anotherId); // if it is available in the cache it will be marked as least recently used
  

• WritableStrings: a Writable for writing to a string array

• quoteArgs and quoteArg: quote arguments for better readability (e.g. for logging)