Will questions

Will answers

• Groovy range iteration without parenthesis
• Groovy or Java equivalent of sumproduct?
• Tooling for expressive, feature rich numeric computations on the JVM
• How to check whether the input is a number or string by using isNan() in groovy
• Groovy 'Peeking' ahead with an iterator?
• Use groovy category in groovy shell
• Groovy method overloading: selection of method prefers interfaces over subclasses?
• Groovy regex when replacing tokens in file
• Iterate over Map<Map<String,String>, Map<String,String>> in groovy
• Call groovy parent class method - Grails