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The <base> HTML element specifies the base URL to use for all relative URLs in a document. There can be only one <base> element in a document.
base(attr = NULL, separate = FALSE, collapse = "")
A HTML tag string.
A named list or named vector, names are attribute names and values are attribute values.
TRUE/FALSE, If TRUE, returns separate tags for each item of attr if length of that item is greater than 1; if FALSE, returns one tag.
A string. If NULL, returns a vector the same length as the longest item of attr, instead of one string.
Learn more at https://developer.mozilla.org/en-US/docs/Web/HTML/Element/base.
base(attr = list(class = "test"))
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