WEBVTT

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A promise is always going to be
in one of three possible states,

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pending, fulfilled, or rejected.

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The pending state is like the waiting
state you're in after being handed

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the pager.

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It's the default state of a promise.

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Fulfilled means that the operation
completed successfully.

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And rejected means that
the operation failed.

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Working with promises is
a three step sequence.

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You create a promise instance
using the Promise() constructor.

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You then define what should happen when
the promise is fulfilled or rejected.