.error_message

internal

Sometimes it is useful to serve up alternative 'shiny' UIs
depending on information passed in the request object, such as the value of
a cookie or a query parameter. This packages facilitates such switches.

Jon Harmon

scenes

Switch Between Alternative 'shiny' UIs

.error_message function

<dl><dt>parameter</dt>
<dd>The argument to test.</dd>
<dt>parameter_name</dt>
<dd>The argument's name. Eventually this should be
automatically handled through rlang or something, in theory.</dd>
<dt>valid_values</dt>
<dd>(optional) Expected values of the parameter.</dd>
<dt>special_message</dt>
<dd>A message tailored to the type of error.</dd>
<dt>level</dt>
<dd>How deep the check is relative to the original function. Default
= 2.</dd></dl>

Arguments

Generate an Error Message — .error_message

<dl>

<dt>parameter</dt>
<dd>The argument to test.</dd>


<dt>parameter_name</dt>
<dd>The argument's name. Eventually this should be
automatically handled through rlang or something, in theory.</dd>


<dt>valid_values</dt>
<dd>(optional) Expected values of the parameter.</dd>


<dt>special_message</dt>
<dd>A message tailored to the type of error.</dd>


<dt>level</dt>
<dd>How deep the check is relative to the original function. Default
= 2.</dd>

</dl>

.error_message: Generate an Error Message

Description

Usage

Arguments