Expression Utilities

Thymeleaf will offer us a set of utility objects that will help us perform common tasks in our expressions.

#dates : utility methods for java.util.Date objects: formatting, component extraction, etc.
#calendars : analogous to #dates , but for java.util.Calendar objects.
#numbers : utility methods for formatting numeric objects.
#strings : utility methods for String objects: contains, startsWith, prepending/appending, etc.
#objects : utility methods for objects in general.
#bools : utility methods for boolean evaluation.
#arrays : utility methods for arrays.
#lists : utility methods for lists.
#sets : utility methods for sets.
#maps : utility methods for maps.
#aggregates : utility methods for creating aggregates on arrays or collections.
#messages : utility methods for obtaining externalized messages inside variables expressions, in the same way as they would be obtained using #{…} syntax.
#ids : utility methods for dealing with id attributes that might be repeated (for example, as a result of an iteration).

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