úÎ! I    NoneBBThis is the most primitive and essential operation for building a 1. All other table-building functions (such as , , and  ) build on top of H. One common trend in the convenience functions is that they accept  ÿž as the table header. This is done because I have found that it is uncommon to need the full power of HTML in the header. Just know that if you need it, this function is the only way to get it. The first argument is a widget that is content to be displayed in the table header. The second argument is the a function that consumes a value to produce the content shown in a row of the table body. This is the same as <, with the convenience of accepting the table header as  .         yesod-table-0.1.2 Yesod.TableColumnheadercellTable singletonwidgettextintlinkedbuildBootstrap text-1.2.0.6Data.Text.InternalText textToWidget$fContravariantTable$fContravariantColumn