calc delay: use expressive variable name

src/index.ts

@@ -239,20 +239,24 @@ function onError(err: AxiosError) {
  // below.
  (err.config as RaxConfig).raxConfig!.currentRetryAttempt! += 1;
 
+ // store with shorter and more expressive variable name.
+ const retrycount = (err.config as RaxConfig).raxConfig!
+ .currentRetryAttempt!;
+
  // Calculate delay according to chosen strategy
  // Default to exponential backoff - formula: ((2^c - 1) / 2) * 1000
  if (delay === 0) {
  // was not set by Retry-After logic
  if (config.backoffType === 'linear') {
- // The delay between the first (actual) attempt and the
- // first retry should be non-zero. That is, by definition
- // config.currentRetryAttempt must equal to 1 for the first
- // retry (was once 0-based, which is a bug -- see #122).
- delay = config.currentRetryAttempt! * 1000;
+ // The delay between the first (actual) attempt and the first retry
+ // should be non-zero. Rely on the convention that `retrycount` is
+ // equal to 1 for the first retry when we are in here (was once 0,
+ // which was a bug -- see #122).
+ delay = retrycount * 1000;
  } else if (config.backoffType === 'static') {
  delay = config.retryDelay!;
  } else {
- delay = ((Math.pow(2, config.currentRetryAttempt!) - 1) / 2) * 1000;
+ delay = ((Math.pow(2, retrycount) - 1) / 2) * 1000;
  }
  }
  setTimeout(resolve, delay);