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Promises in Ruby

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No logo availableConfreaks, LLC
 Gobhai, Dinshaw

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Promises in Ruby
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65
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CC Attribution - ShareAlike 3.0 Unported:
You are free to use, adapt and copy, distribute and transmit the work or content in adapted or unchanged form for any legal and non-commercial purpose as long as the work is attributed to the author in the manner specified by the author or licensor and the work or content is shared also in adapted form only under the conditions of this
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Sequential workflows are easy to write (top down), but hard to write well. State machine workflows start to feel hacky, when complex; presenter patterns can be very heavy. Promises are a beautiful way to define and execute progressive routines while allowing access to independent steps for things like logging, exception handling, and picking up where you left off.