Javascript's Map() function's weird behaviour
10287
Why does parseInt yield NaN with Array#map?
38708
What is a use case where one would use an SObject as a Map key?
50864
List comprehension vs map
608
Sort a Map by values
137147
Mapping  in vimrc causes bizarre arrow behaviour
129660
Why is array.push sometimes faster than array[n] = value?
136558
How exactly does this recursive function work in JavaScript?
26502
iterating over and removing from a map
90524
What does map(&:name) do in this Ruby code?
66350
Weird closure behavior in python
99211
What is the fastest way to change a key of an element inside std::map
150692
What's the difference between set and map in C++?
109376
Is indexing a new map element and having something that reads it assigned to it undefined behaviour, or just unspecified?
64704
Behaviour of LinkedHashMap's keySet() and values() methods
148394
Pretty-print a Map in Java
128709
Why is there a `null` value in JavaScript?
15837
Array in Java program bizarre behaviour