History

The top-left arrow buttons (⭠ ⭢) can be used to navigate through history. History is built up from commands pushing values into it. For example, anytime a value is double clicked, clojure.datafy/nav is applied to that value and the result is pushed onto the history stack. All commands that produce a new value will do the same.

To quickly navigation through history, checkout the following commands:

• portal.ui.commands/history-back
• portal.ui.commands/history-forward
• portal.ui.commands/history-first
• portal.ui.commands/history-last

Portal Atom

In addition to getting the selected value back in the repl, the portal atom also allows direct manipulation of portal history. For example:

(def a (p/open))

; push the value 0 into portal history
(reset! a 0)

@a ;=> 0 - get current value

; inc the current value in portal
(swap! a inc)

@a ;=> 1 - get current value