validateCssUnit
validateCssUnit(x)
Arguments
x | The unit to validate. Will be treated as a number of pixels if a unit is not specified. |
---|
Validate proper CSS formatting of a unit
Value
A properly formatted CSS unit of length, if possible. Otherwise, will throw an error.
Description
Checks that the argument is valid for use as a CSS unit of length.
Details
NULL
and NA
are returned unchanged.
Single element numeric vectors are returned as a character vector with the
number plus a suffix of "px"
.
Single element character vectors must be "auto"
or "inherit"
,
or a number followed by a valid suffix: px
, %
, em
,
pt
, in
, cm
, mm
, ex
, or pc
.
Any other value will cause an error to be thrown.
Examples
validateCssUnit("10%")[1] "10%"validateCssUnit(400) #treated as '400px'[1] "400px"