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https://github.com/JuanitoFatas/what-do-you-call-this-in-ruby

Solving the second hard problem in Computer Science.
https://github.com/JuanitoFatas/what-do-you-call-this-in-ruby

naming operators ruby

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Solving the second hard problem in Computer Science.

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# What do you call this in Ruby?



| What? | Name |

| ----- | ---- |

| `=>` | hashrocket |

| `=>` | heavy arrow |

| `=>` | fat arrow |

| `=>` | fat comma |

| `=>` | rocket dagger |

| `<=>` | spaceship |

| `<=>` | ufo |

| `=` | equal |

| `=` | assignment operator |

| `=` | half mesh |

| `=` | gets |

| `==` | equals |

| `==` | unassembled hashtag |

| `===` | threequals |

| `===` | really really really equals |

| `!=` | not equals |

| `<=` | less than or equals |

| `>=` | greater than or equals |

| `>=` | greater-than-or-equal-to |

| `=~` | kind of equals |

| `=~` | matches |

| `=~` | is like |

| `=~` | eek squeak |

| `=~` | cigarette operator |

| `=~` | equal like |

| `=~` | bacon cannon |

| `=~` | pretty much |

| `=~` | tadpole |

| `~` | tilde |

| `~` | bacon |

| `~` | twiddle |

| `~` | squiggle |

| `~>` | approximately greater |

| `~>` | approximate |

| `~>` | compatible with version |

| `~>` | optimistic |

| `~>` | version match operator |

| `~>` | twiddlewakka |

| `~>` | pessimisive match |

| `~>` | pessimistic operator |

| `~>` | roughly equals |

| `~>` | harpoon |

| `~>` | tadpole |

| `~>` | sperm |

| `~>` | spermy operator |

| `~>` | eating bacon |

| `#` | octothorpe |

| `#` | hash |

| `#` | pound |

| `#` | mesh |

| `->` | lambda literal |

| `->` | stabby lambda |

| `->` | dash rocket |

| `->` | thin arrow |

| `->` | bee sting |

| `\|\|=` | pipe bomb |

| `\|\|=` | assign unless truthy |

| `\|\|=` | top hat operator |

| `\|\|=` | birthday cake operator |

| `\|\|=` | hammer |

| `\|\|=` | or equals |

| `\|\|=` | [rose memoization](https://thepugautomatic.com/2016/01/rose-memoization/) |

| `\|\|=` | rose caching |

| `\|\|=` | t-square |

| `\|\|=` | duck operator |

| `\|\|=` | or-gets |

| `\|\|=` | robot duck |

| `<%=` | skull tag |

| `<%=` | angry squid |

| `<%=` | puzzled squid |

| `<%=` | cthulhu |

| `<%` | clown hats |

| `!` | not |

| `!` | bang |

| `!` | wow |

| `!!` | double bang |

| `!!` | bang bang |

| `*` | splat |

| `*` | twinkle |

| `*` | star |

| `{}` | braces |

| `{}` | curly |

| `{}` | squiggly brackets |

| `()` | parens |

| `()` | parentheses |

| `()` | wax/wane |

| `()` | southern hemisphere |

| `()` | bubble |

| `[]` | brackets |

| `[]` | squares |

| `[ ]` | squadrons |

| `foo[0]` | sub |

| `?:` | elvis |

| `?:` | conditional operator |

| `?:` | ternary if |

| `?=` | Positive Lookahead |

| `?<=` | Positive Lookbehind |

| `?!` | Negative Lookahead |

| `?>` | forward shovel |

| `^` | caret |

| `^` | hat |

| `^` | exor |

| `^` | sharkfin |

| `^` | up |

| `@` | at sign |

| `@` | strudle |

| `@` | whirlpool |

| `@` | spiral |

| `*args` | stargs |

| `/` | slash |

| `/` | whack |

| `/` | solidus |

| `\` | backwhack |

| `\` | backslash |

| `\` | escape |

| `&` | pretzel |

| `&` | ampersand |

| `_` | unused variable |

| `_` | blank |

| `_` | trash |

| `_` | wild card |

| `_` | don't care |

| `_` | whatever |

| `_` | meh |

| `_` | undervar |

| `_` | skid |

| `_` | skim |

| `_` | underscore |

| `_` | disgraceful |

| `!!!` | mad hype |

| `!!!` | temporarily reverse the value of this bool to try something out, but it should stand out enough that I don't accidentally leave it in. |

| `!!!` | tribble |

| `!!!` | Tri-not |

| `!!!` | Yoda operator |

| `!!!` | bang bang bang |

| `'` | sparks |

| `"` | rabbit ears |

| `?` | question mark |

| `?` | what |

| `?` | eh? |

| `$` | big money |

| `$` | dollar |

| `%` | double-oh-seven |

| `%` | mod |

| `%` | percent |

| `%>` | ice cream cone |

| `%>` | waffle cone |

| `&.` | lonely operator |

| `&.` | safe navigation operator |

| `&.` | maybe |

| `<<~` | squiggly heredoc |

| `-@` | unary operator |

| `+@` | unary operator |

| `<<-` | heredoc |

| `&:-@` | surprise |

| trailing comma | the Livingston-Gray comma |

| `..` | range |

| `..` | flip-flop |

| `...` | here be dragons |

| `...` | ellipsis |

| `.?` | claw of demeter |

| `&&` | and |

| `\|\|` | or |

| `::` | double colon |

| `::` | [namespace resolution operator] |



Missing anything? Please send a Pull Request!



## Sources



[Join the discussion on Reddit](https://www.reddit.com/r/ruby/comments/4c2kqr/what_do_you_call_this_in_ruby).



[Join the discussion on Hacker News](https://news.ycombinator.com/item?id=11368448).



- http://parley.rubyrogues.com/t/operator-nicknames/704/13

- https://github.com/rubygems/rubygems/pull/123

- https://github.com/CocoaPods/Core/pull/76

- https://en.wiktionary.org/wiki/octothorpe

- https://en.wikipedia.org/wiki/International_Phonetic_Alphabet

- https://en.wikipedia.org/wiki/Slash_(punctuation)#Currency

- https://ruby-operators.herokuapp.com

- https://github.com/thoughtbot/guides/issues/381

- https://github.com/bf4/learning/blob/gh-pages/ruby/operators.md

- http://stackoverflow.com/questions/1345843/what-does-the-question-mark-operator-mean-in-ruby

- http://symbolhound.com

- http://stackoverflow.com/questions/8476627/what-do-you-call-the-operator-in-ruby

- http://stackoverflow.com/questions/2259775/what-do-you-call-the-operator-in-ruby

- https://www.ruby-lang.org/en/news/2015/12/25/ruby-2-3-0-released

- http://stackoverflow.com/questions/664978/what-do-you-call-the-operator-in-ruby-when-its-used-for-appending-stuff

- http://stackoverflow.com/questions/2697024/what-are-and-in-ruby/2697187#2697187

- http://stackoverflow.com/questions/1217088/what-does-mapname-mean-in-ruby#comment4137004_1217088

- http://www.catb.org/jargon/html/A/ASCII.html

- http://www.muppetlabs.com/~breadbox/intercal-man/tonsila.html

- https://twitter.com/HaggardHawks/status/713966036337303552

- https://github.com/Carthage/Carthage/blob/master/Documentation/Artifacts.md#version-requirement



## Friends



- [perlsecret](http://search.cpan.org/dist/perlsecret/lib/perlsecret.pod#SYNOPSIS)

- [Operators from ekmett/lens Wiki](https://github.com/ekmett/lens/wiki/Operators)



## CC0 1.0 Universal



To the extent possible under law, @JuanitoFatas has waived all copyright and related or neighboring rights to "what-do-you-call-this-in-ruby".



[namespace resolution operator]: https://stackoverflow.com/a/3009565/517868