Terry Jones and Nicholas H. Tollervey
Learning jQuery Deferreds
Learning jQuery Deferreds
by Terry Jones and Nicholas H. Tollervey
Copyright © 2014 Terry Jones and Nicholas H. Tollervey. All rights reserved.
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January 2014: First Edition
Revision History for the First Edition:
2013-12-20: First release
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ISBN: 978-1-449-36939-2
[LSI]
Table of Contents
Preface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
1.
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Food for Thought 1
Terminology: Deferreds and Promises 3
Familiar Promises 4
2.
The jQuery Deferred API. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Consuming Promises 8
More Terminology: Resolve, Reject and Progress 8
done 9
fail 9
always 10
progress 10
promise 11
then 11
state 13
when 13
Creating Deferreds 15
Construction 15
resolve and resolveWith 16
reject and rejectWith 17
notify and notifyWith 17
Putting It All Together 17
Deferred Dynamics 18
Deprecated Promise Methods 19
isRejected and isResolved 19
pipe 19
iii
