what's different between each and collect method in Ruby
71542
Array#each vs. Array#map
137281
"Has" or "Have" with "Each"?
28802
Is Ruby pass by reference or by value?
113320
How to modify a Collection while iterating using for-each loop without ConcurrentModificationException?
3482
What are the differences between class, set, family, and collection?
107087
Each vs. Either
114318
Difference between method and function in Scala
64633
What is the difference between a 'closure' and a 'lambda'?
81636
diff a ruby string or array
22036
Why does Ruby use yield?
56572
Which method performs better: .Any() vs .Count() > 0?
110561
Count property vs Count() method?
111570
What is the difference between class and instance methods?
29388
What is the difference between these arrays?
14753
How to avoid NoMethodError for nil elements when accessing nested hashes?
136392
What are the restrictions for method names in Ruby?
99330
Why do you need $ when accessing array and hash elements in Perl?