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This section details how to go about using the dynamic features of Groovy such as implementing the GroovyObject interface and using ExpandoMetaClass, an expandable MetaClass that allows adding of methods, properties and constructors.

Compile-time metaprogramming is also available using Compile-time Metaprogramming - AST Transformations

Dynamic Method Invocation

You can invoke a method even if you don't know the method name until it is invoked:

You can also "spread" the arguments in a method call, when you have a list of arguments:

This also works in combination of the invocation with a GString:

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