htmltools 0.5.2

Breaking Changes

• Closed #205: When calling tagGetAttribute(x) on an object with a non-atomic attribute, a list of untouched values will be returned. It is still recommended to only store character values inside attributes. (#212)

New Features & Improvements

• {htmltools} now has its own {pkgdown} site hosted at https://rstudio.github.io/htmltools/.

• The new tagQuery() function provides a jQuery inspired interface to query and/or modify HTML tag() (e.g., div()) or tagList() objects. To learn more, see the {pkgdown} article. (#208)

• Added tagAddRenderHook() for delaying modification of a tag object until it is rendered. A list of render-time hooks may also be added via the new .renderHook argument added to all tag() functions. (#215)

• Closed #243: Added withTags(.noWS) to change the default whitespace behavior for all tags within the call to withTags(). (#245)

• Closed #251: Added .cssSelector parameters to tag modifying functions such as tagAppendChildren() or tagAppendChildren(). The .cssSelector allows you to target particular (inner) tags of interest. See tagAppendChildren() for examples. (#224)

• Closed #225: Added tagInsertChildren() to be able to insert child tag objects at a particular location. (#224)

Bug Fixes

• When retrieving a tag attribute using tagGetAttribute(tag, attr), NA values will be removed before combining remaining attribute values. If all attribute values are NA, then a single NA value will be returned. (#212)

• Closed #197: Fixed rendering of boolean attributes in <script> tags rendered via renderDependencies() (#197, thanks @atusy).

• Closed #222: Unnamed attributes are no longer allowed to be appended via tagAppendAttribs(). When trying to print unnamed tag attribs, a better error message is provided. (#229)