tagAssert: Check that a tag has specific properties

In DivadNojnarg/outstanding-shiny-ui-code: Standalone Code for "Outstanding Shiny User Interfaces"

Description

Check for type and class. Raise an error if the conditions are not fulfilled. This function is borrowed from shinydashboard.

Usage

tagAssert(tag, type = NULL, class = NULL, allowUI = TRUE)

Arguments

tag	Tag to check.
type	Expected type.
class	Expected class.
allowUI	?

Value

An error if conditions are not met

Examples

## Not run: 
 library(shiny)
 myTag <- div(class = "bg-blue")
 tagAssert(myTag, type = "div")
 tagAssert(myTag, type = "li") # will fail
 tagAssert(myTag, class = "bg-blue")

## End(Not run)

DivadNojnarg/outstanding-shiny-ui-code documentation built on Nov. 2, 2021, 12:03 p.m.