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Articles
Radio and checkbox fields
To display element lists of radio or checkbox controls, the syntax provided for wrapping the elements uses a . This formatting makes it possible (...)
Comparison filters
Just like the criteria used for loops, comparison filters can also be applied to tags with the following "pipe" syntax: [(#TAG|operatorvalue)] (...)
The "!" operator
Conditional criteria of simple negation, when operating on fields that are external to the table (fields accessed by a join to another table), (...)
The == operator
The == operator (or its inverse !==) is used for making record selections based on regular expressions. They can therefore enable extremely (...)