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# Keywords A list and count of keywords in programming languages. ┌───────────────────────────────────────────────────────────────────────────────────────────┐ │ ...... │ │ ...... │ │ ...... ...... │ │ ...... ...... │ │ ...... ...... ...... │ │ ...... ...... ...... │ │ ...... ...... ...... │ │ ...... ...... ...... │ │ ...... ...... ...... │ │ ...... ...... ...... ...... ...... │ │ ...... ...... ...... ...... ...... ...... ...... │ │ ...... ...... ...... ...... ...... ...... ...... │ │ ...... ...... ...... ...... ...... ...... ...... ...... ...... │ │ ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... │ │...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... │ │...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... │ │..22.. ..25.. ..26.. ..32.. ..35.. ..36.. ..49.. ..51.. ..52.. ..54.. ..89.. .100.. .109.. │ │Lua Go Erlang C Python Ruby JS Java Rust Dart Swift C# C++ │ └───────────────────────────────────────────────────────────────────────────────────────────┘ ## Why does it matter? The number of keywords in a programming language _can_ be an indication to it's simplicity/complexity, and that can impact the simplicity/complexity of the solutions that developers produce using it. Complex solutions can be more expensive to maintain and difficult to hire for. However, this is dependent on many factors and keyword count is only one; language idioms also play a massive part. ## Contribute Don't see a language here? Please open a pull request adding it! ## Similar Work * https://github.com/e3b0c442/keywords - An expanded version of this list, including a large collection of languages and formal references. ## Keyword List ### Lua (22 keywords) and break do else elseif end false for function goto if in local nil not or repeat return then true until while ### Golang (25 keywords) break default func interface select case defer go map struct chan else goto package switch const fallthrough if range type continue for import return var ### Erlang (26 keywords) after and andalso begin bnot bor bsl bsr bxor case catch cond div end fun if let not of or orelse receive rem try when xor ### C (32 keywords) auto double int struct break else long switch case enum register typedef char extern return union const float short unsigned continue for signed void default goto sizeof volatile do if static while ### Python (35 keywords) False await else import pass None break except in raise True class finally is return and continue for lambda try as def from nonlocal while assert del global not with async elif if or yield ### Ruby (36 keywords) alias and begin break case class def defined? do else elsif end ensure false for if in module next nil not or redo rescue retry return self super then true undef unless until when while yield ### JavaScript (49 keywords) arguments await break case catch class const continue debugger default delete do else enum eval export extends false finally for from function if implements import in instanceof interface let new null package private protected public return static super switch this throw true try typeof var void while with yield ### Java (51 keywords) abstract continue for new switch assert default goto package synchronized boolean do if private this break double implements protected throw byte else import public throws case enum instanceof return transient catch extends int short try char final interface static void class finally long strictfp volatile const float native super while _ (underscore) ### Rust (52 keywords) abstract alignof as become box break const continue crate do else enum extern false final fn for if impl in let loop macro match mod move mut offsetof override priv proc pub pure ref return Self self sizeof static struct super trait true type typeof unsafe unsized use virtual where while yield ### Dart (54 keywords) abstract as assert async await break case catch class const continue covariant default deferred do dynamic else enum export extends external factory false final finally for get if implements import in is library new null operator part rethrow return set static super switch sync this throw true try typedef var void while with yield ### Swift (89 keywords) associatedtype class deinit enum extension func import init inout internal let operator private protocol public static struct subscript typealias var break case continue default defer do else fallthrough for guard if in repeat return switch where while as catch dynamicType false is nil rethrows super self Self throw throws true try #column #file #function #line #available #column #else#elseif #endif #file #function #if #line #selector associativity convenience dynamic didSet final get infix indirect lazy left mutating none nonmutating optional override postfix precedence prefix Protocol required right set Type unowned weak willSet ### C# (100 keywords) abstract add alias as ascending async await base bool break byte case catch char checked class const continue decimal default delegate descending do double dynamic else enum event explicit extern false finally fixed float for foreach from get global goto group if implicit in int interface internal into is join let lock long namespace new null object operator orderby out override params partial private protected public readonly ref remove return sbyte sealed select set short sizeof stackalloc static string struct switch this throw true try typeof uint ulong unchecked unsafe ushort using value var virtual void volatile where while yield ### C++ (109 keywords) #define #defined #elif #else #endif #error #if #ifdef #ifndef #include #line #pragma #undef alignas alignof and and_eq asm atomic_cancel atomic_commit atomic_noexcept auto bitand bitor bool break case catch char char16_t char32_t class compl concept const constexpr const_cast continue decltype default delete do double dynamic_cast else enum explicit export extern false final float for friend goto if inline int import long module mutable namespace new noexcept not not_eq nullptr operator or or_eq override private protected public register reinterpret_cast requires return short signed sizeof static static_assert static_cast struct switch synchronized template this thread_local throw transaction_safe transaction_safe_dynamic true try typedef typeid typename union unsigned using virtual void volatile wchar_t while xor xor_eq
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A list and count of keywords in programming languages.
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