What are the most helpful programming language features?

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Contributors
Michael Howitz
gilch
Samuel Ford
ha xx
Luca Allulli
Tom Clift
Maxim Kamalov
Szymon Jankowski
MagicalBanebdjedet
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Activity
48 Options
Type inference
17 Recommendations
Higher-order functions
34 Recommendations
Open source
17 Recommendations
Functions
15 Recommendations
Cross-platform
15 Recommendations
Closures
17 Recommendations
Named arguments/parameters
10 Recommendations
Interfaces
16 Recommendations
Algebraic types
10 Recommendations
REPL
10 Recommendations
Polymorphism
9 Recommendations
Default arguments
8 Recommendations
Docstrings
7 Recommendations
Garbage collector
12 Recommendations
Tail-call optimization
6 Recommendations
Homoiconicity/macros
6 Recommendations
Immutable/persistent data structures
6 Recommendations
Dependent types
5 Recommendations
Classes
13 Recommendations
Profiler
4 Recommendations
Generics
7 Recommendations
Everything is an expression
5 Recommendations
Save state/image
3 Recommendations
Everything is an object
5 Recommendations
Pure functions
2 Recommendations
Laziness
2 Recommendations
Continuations
2 Recommendations
Variadic functions
2 Recommendations
Unification
2 Recommendations
Foreign function interface
2 Recommendations
Libraries
2 Recommendations
Intellisense
1 Recommendations
referential transparency
1 Recommendations
Exceptions
5 Recommendations
Permissive license
3 Recommendations
Lexical scope
2 Recommendations
Regular expressions
3 Recommendations
Coroutines
2 Recommendations
Monkeypatching
2 Recommendations
Whole-array operators
1 Recommendations
Exception restarts
1 Recommendations
Fork/join
1 Recommendations
Pattern matching
0 Recommendations
Duck typing
2 Recommendations
Heredocs
1 Recommendations
Prototype objects
1 Recommendations
Debugger
1 Recommendations
IDE support
1 Recommendations

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Pros

Tom Clift

Pro
Increased readability through concise function/method calls

Function/method arguments with default/typical values can be omitted, resulting in a more concise call and hence improved readability. Combined with named arguments/parameters, it negates the need for function/method overloading.

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