Update ReplayButton.md
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@ -15,12 +15,12 @@ an "Action Replay" of "The Observed Epoch", and this happens in two Steps:
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So, Step 1 is "reestablish initial conditions" and Step 2 is "do it all again".
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### Further Notes:
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- In Step 1, the reset of `app-db` will trigger dominoes 4,5,6, causing
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subscriptions and views to run as the application returns to the "prior state",
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but none of the trace for this is captured. It is all ignored.
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- All trace arising in Step 2 forms a normal, new Epoch. The (original) Observed Epoch (which we are replaying)
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- In Step 1, the reset of `app-db` will trigger computation and trace.
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Subscriptions and views are run as the application returns to the "prior state",
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but none of the associated trace is captured. It is all ignored.
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- Trace arising from Step 2 forms a normal, new Epoch. The Observed Epoch (which we are replaying)
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is still there, untouched.
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- The new Epoch (Step 2) is added to the end of the existing Epoch list. It becomes the most recent Epoch.
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- New Epochs (Step 2) are always added to the end of the Epoch list (never inserted amongst old Epochs).
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- The user's experience is that they click the "Replay" button
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and immediately view the result. So, after Step 2, the user is auto-navigated to this new epoch.
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@ -28,18 +28,19 @@ So, Step 1 is "reestablish initial conditions" and Step 2 is "do it all again".
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It facilitates "The HotPlay Workflow":
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- A. You `Observe` an Epoch (in `re-frame-trace`) to see if an event was correctly processed
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- B. You notice a problem, and you `Edit` (correct) the event handler (or subs handler, view, etc) via Cursive, Emacs, etc.
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- B. You notice a problem, and you `Edit` (fix) the event handler (or subs handler, view, etc) via Cursive, Emacs, etc.
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- C. Figwheel will re-compile and `Hotload` your correction
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- D: You click the `Replay` button
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- E: Back to A
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Because of `Replay's` "Step 1", you effortlessly get identical "initial conditions"
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each iteration of the workflow, which removes a lot of incidental cognative load
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(struggling around trying to put the application back into the right state for each new iteration)
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and keeps the iterations snappy. Flow.
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Because of `Replay's` "Step 1", you effortlessly get identical "initial conditions" for
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each iteration of the workflow, and this is true blessing. It removes the nagging
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cognative load of "allowing for" slightly shifting state. Or the effort of manually
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reestablishing identical application state before each iteration.
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WARNING: obviously this works best when the state is contained in your SPA. When
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there's remote state (a remote database?) it gets trickier to return to initial conditions.
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WARNING: obviously this only works when the state is contained in your SPA. When
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there's remote state (a remote database?) it is more effort to return to initial conditions
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each iteration.
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### The Workflow Name
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