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Errata for Async JavaScript


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  • Typo
  • Tech. error
  • Suggestion
  • Maybe next edition
  • Not a problem
  • Reported in: P1.0 (26-Mar-14)
PDF page: 4
A loop like this will run forever: var ajaxRequest = new XMLHttpRequest;'GET', url); ajaxRequest.send(null); while (ajaxRequest....more...
  • Reported in: P2.0 (14-Oct-15)
PDF page: 14

whomever should be whoever around the end of the page--rob

  • Reported in: P1.0 (07-Jul-13)
PDF page: 17

In the checkPassword function, the query variable is defined as queryStr but used as selectUser.--William Bowers

  • Reported in: P1.0 (07-Jun-13)
Paper page: 23
This is from the LeanPub edition, so the error possibly doesn't exist (presuming it's an error). You list "...under jQuery 1.5+..." var promise....more...
  • Reported in: P1.0 (10-Mar-14)
Paper page: 27

$'newTooltip', function() {
one instead of on

  • Reported in: P1.0 (13-Dec-12)
PDF page: 33
Paper page: 17

In the code snippets variables 'queryStr' and 'selectUser' should be the same
variable, I think.--michael cannon

  • Reported in: P1.0 (10-Dec-13)
PDF page: 34

The jsFiddle referenced is missing the alway() callback used in the text, so it does not log "A choice was made" as the text claims it will.--tom

  • Reported in: P1.0 (10-Dec-13)
PDF page: 38
The book states "So, to recap, a Promise takes three kinds of callbacks: done, fail, and progress." I believe you are overlooking the fourth callback...more...
  • Reported in: P1.0 (28-Aug-13)
PDF page: 51

In Asyncjs/forEachSeries.js code sample, "functio isFilename" has a typo. "function" is missing last 'n' (functio).
--Rob McCabe

  • Reported in: P1.0 (15-Dec-12)
PDF page: 51
Paper page: 36
var showPromise = $; var hidePromise = $flash.hide(); I think they should be: var showPromise = $; var hideP...more...
  • Reported in: P1.0 (15-Dec-12)
PDF page: 70
Paper page: 55

I think it's better to mention that "to invoke the callback function in the worker is a must", or the queue cannot work properly.--PunCha

  • Reported in: P1.0 (24-Dec-12)
PDF page: 127
(ePub) Last paragraph, first sentence: “Node’s error conventions may not ideal for Async.js’s collection methods.” Should be “Node’s error co...more...