has_updated

Takes a UI element value and an older value and determines if
it has been modified

'Shiny' apps can often make use of the same key elements, this package provides modules for common tasks (data upload, wrangling data, figure generation and saving the app state), and also a framework for developing. These modules can react and interact as well as generate code to create reproducible analyses.

John Harrold

formods

'Shiny' Modules for General Tasks

has_updated function

<dl><dt>ui_val</dt>
<dd>Current value from the UI.</dd>
<dt>old_val</dt>
<dd>Last value of of the element.
defined.</dd>
<dt>init_val</dt>
<dd>List of values to skip. These are values expected to be
assigned on initialization. For buttons it may be 0. For others it may be
"".</dd></dl>

Arguments

Detect if a UI element has updated — has_updated

<dl>

<dt>ui_val</dt>
<dd>Current value from the UI.</dd>


<dt>old_val</dt>
<dd>Last value of of the element.
defined.</dd>


<dt>init_val</dt>
<dd>List of values to skip. These are values expected to be
assigned on initialization. For buttons it may be 0. For others it may be
"".</dd>

</dl>

has_updated: Detect if a UI element has updated

Description

Usage

Value

Arguments

Examples