x-visual app examples
zlib port to javascript - fast, modularized, with browser support
Modern type-safe way of building CLIs
A logger for just about everything.
Microsoft Azure SDK for JavaScript - Logger
Node.js library editing Windows Resource data
A little library for asserting types and values, with zero dependencies.
React tooltip library built around react-popper
a point geometry with transforms
React component to render markdown
Convert OpenAPI 3.0 & 3.1 schemas to TypeScript
Wrapper above react-select that supports pagination on menu scroll
React-leaflet-cluster is a plugin for react-leaflet. A wrapper component of Leaflet.markercluster.
A react-native component to use context menu's (UIMenu) on iOS 13/14+
WebRTC Implementation for TypeScript (Node.js)
Solana Javascript API
Framework-agnostic migration tool for Node
Cypress preprocessor for bundling JavaScript via webpack
OpenTelemetry B3 propagator provides context propagation for systems that are using the B3 header format
Test if a double-precision floating-point numeric value is NaN.
Test if a double-precision floating-point numeric value is infinite.
Return an unsigned 32-bit integer corresponding to the more significant 32 bits of a double-precision floating-point number.
AWS X-Ray Middleware for Express (Javascript)
GraphQL JIT Compiler to JS
Low level functionality for Arti's RPC service
Host runtime for Cardinal's WebAssembly middleware
Lightweight mesh communication protocol for linux
Examples for KNX Library
Lightweight mesh communication protocol for linux
Takes advantage of MacRuby and uses APIs new in Snow Leopard to create, read, and update keychain entries
Get the name of the current operating system. Example: OS X Yosemite
== DESCRIPTION: Charlie is a library for genetic algorithms (GA) and genetic programming (GP). == FEATURES: - Quickly develop GAs by combining several parts (genotype, selection, crossover, mutation) provided by the library. - Sensible defaults are provided with any genotype, so often you only need to define a fitness function. - Easily replace any of the parts by your own code. - Test different strategies in GA, and generate reports comparing them. Example report: http://charlie.rubyforge.org/example_report.html == INSTALL: * sudo gem install charlie == EXAMPLES: This example solves a TSP problem (also quiz #142): N=5 CITIES = (0...N).map{|i| (0...N).map{|j| [i,j] } }.inject{|a,b|a+b} class TSP < PermutationGenotype(CITIES.size) def fitness d=0 (genes + [genes[0]]).each_cons(2){|a,b| a,b=CITIES[a],CITIES[b] d += Math.sqrt( (a[0]-b[0])**2 + (a[1]-b[1])**2 ) } -d # lower distance -> higher fitness. end use EdgeRecombinationCrossover, InversionMutator end Population.new(TSP,20).evolve_on_console(50) This example finds a polynomial which approximates cos(x) class Cos < TreeGenotype([proc{3*rand-1.5},:x], [:-@], [:+,:*,:-]) def fitness -[0,0.33,0.66,1].map{|x| (eval_genes(:x=>x) - Math.cos(x)).abs }.max end use TournamentSelection(4) end Population.new(Cos).evolve_on_console(500)
Rangeary is a sub-class of Array and represents any 1-dimensional multiple-range, for example, (x<4 and 7<x<=9) or (x<="c" and "f"<=x), where the infinities can be abstract like nil or be defined by the user. All the standard logical operations, including negation, conjunction and disjunction, are supported and can be used with conventional Ruby-style operators. Each range is represented as RangeExtd class (Extended Range), which is a sub-class of Range and supports exclude-begin and open-ended (to Infinity) ranges, and is downloadable from https://rubygems.org/gems/range_extd
When this gem is loaded and activated inside your rails app, your MySQL connection adapter for ActiveRecord will be monkey-patched. The patch simply tweaks it to store all boolean "true" values as negative one instead of positive one inside your TINYINT columns. It also patches it to recognize and interpret negative one as "true". Positive one will still be recognized as true as well. Used for special cases, such as developing rails apps that must, for example, work with existing databases that use such a convention. For a rails app version X.Y.Z, use army-negative version "~> X.Y.0". For example, a rails 3.0.x app should use "~> 3.0.0" and a 3.1.x app would use "~> 3.1.0", etc. The exception is that rails 2.3.x apps should just use "~> 2.0" since 2.3 is the earliest version of rails that's supported.
A pure-ruby growl notifier for UDP and GNTP growl protocols. ruby-growl allows you to perform Growl notifications from machines without growl installed (for example, non-OSX machines). What is growl? Growl is a really cool "global notification system originally for Mac OS X". You can receive Growl notifications on various platforms and send them from any machine that runs Ruby. OS X: http://growl.info Windows: http://www.growlforwindows.com/gfw/ Linux: http://github.com/mattn/growl-for-linux ruby-growl also contains a command-line notification tool named 'growl'. It is almost completely option-compatible with growlnotify. (All except for -p is supported, use --priority instead.)
== Develop, Decorate and manage Dependencies for C (GNU) Makefiles easily with a Ruby script. Install using the Ruby Gem: > gem install demake To create an example with multiple sample applications: > demake example This will create a directory named example containing the example. To create an example with a single sample application: > demake oreo This will create a directory named oreo containing the example. It requires a demake directory and application file containing the application names followed by depencencies separated by spaces and with a new line to indicate a different application. Something like (from the example): > mkdir demake > echo "hello string" > demake/applications > echo "goodbye string" >> demake/applications > demake For customization, optionally include (see example): demake/settings.rb, demake/test-target.rb, demake/install-target.rb, demake/license The output of the command by itself is a (GNU style) file named Makefile: > demake You can also clone from git: > git clone https://github.com/MinaswanNakamoto/demake.git > chmod +x demake/bin/demake > cd demake > bin/demake example > cd example ; make ; make build ; make test If you have an existing C application and you want to generate a Makefile for it, you might try the gen_application shell script. > ./gen_application myapp
IfElse is an implementation of the pure object-oriented conditional syntax found in languages of the SmallTalk family, including Self. Those languages distinguish themselves by taking the "everything is an object / everything is a method" approach to a further extreme than Ruby, and getting rid of almost all cases of special syntax other than object definition and method call. Ruby, of course, already works this way for some purposes -- thus most Ruby developers prefer to write [1, 17, 39].each {|x| puts x} rather than for x in [1, 17, 39] puts x end and 3.times {|n| puts n} instead of i = 1 while i <= 3 puts i i += 1 end This module extends that same preference to conditional statements, providing replacements for the Ruby keywords +if+, and +unless+: x = 1 (x >= 0).if {puts 'positive'} (x < 0).unless {puts 'positive'} Note that as with the built-in special forms these methods replace, these methods are available on any Ruby Object, and obey the usual rules of which values are considered "Truthy" and "Falsey". <b>Note that the primary purpose of this gem is to demonstrate that the built-in (special form) versions of conditionals provided with Ruby are mostly syntactic sugar -- as with the +for+ keyword, there is no real need for these to be built into the language. With that said, the gem is fully tested, has no particular performance penalty (beyond the usual cost of method dispatch), and should be fully useable in general purpose code.</b> <b>Note also that while Smalltalk-family languages also provide an equivalent to the Ruby +else+ keyword, this depends on the more general block/lambda capability of those languages, which allow a method to take multiple blocks as arguments. This could be imitated with a syntax like:</b> # NOT A REAL EXAMPLE (x > 42).if then: lambda {|x| :big }, else: lambda {|x| :small} <b>which is true to the SmallTalk original, but feels less Ruby-ish to me, so I didn't implement this -- perhaps in a later version.</b>
= sinatra-mongo Extends Sinatra with an extension method for dealing with monogodb using the ruby driver. Install it with gem: $ gem install sinatra-mongo Now we can use it an example application. require 'sinatra' require 'sinatra/mongo' # Specify the database to use. Defaults to mongo://localhost:27017/default, # so you will almost definitely want to change this. # # Alternatively, you can specify the MONGO_URL as an environment variable set :mongo, 'mongo://localhost:27017/sinatra-mongo-example' # At this point, you can access the Mongo::Database object using the 'mongo' helper: puts mongo["testCollection"].insert {"name" => "MongoDB", "type" => "database", "count" => 1, "info" => {"x" => 203, "y" => '102'}} get '/' do mongo["testCollection"].find_one end If you need to use authentication, you can specify this in the mongo uri: set :mongo, 'mongo://myuser:mypass@localhost:27017/sinatra-mongo-example' == Mongo Reference * http://www.mongodb.org/display/DOCS/Ruby+Tutorial == Note on Patches/Pull Requests * Fork the project. * Make your feature addition or bug fix. * Add tests for it. This is important so I don't break it in a future version unintentionally. * Commit, do not mess with rakefile, version, or history. (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull) * Send me a pull request. Bonus points for topic branches. == Copyright Copyright (c) 2009 Joshua Nichols. See LICENSE for details.
= sinatra-mongo Extends Sinatra with an extension method for dealing with monogodb using the ruby driver. Install it with gem: $ gem install sinatra-mongo Now we can use it an example application. require 'sinatra' require 'sinatra/mongo' # Specify the database to use. Defaults to mongo://localhost:27017/default, # so you will almost definitely want to change this. # # Alternatively, you can specify the MONGO_URL as an environment variable set :mongo, 'mongo://localhost:27017/sinatra-mongo-example' # At this point, you can access the Mongo::Database object using the 'mongo' helper: puts mongo["testCollection"].insert {"name" => "MongoDB", "type" => "database", "count" => 1, "info" => {"x" => 203, "y" => '102'}} get '/' do mongo["testCollection"].find_one end If you need to use authentication, you can specify this in the mongo uri: set :mongo, 'mongo://myuser:mypass@localhost:27017/sinatra-mongo-example' == Mongo Reference * http://www.mongodb.org/display/DOCS/Ruby+Tutorial == Note on Patches/Pull Requests * Fork the project. * Make your feature addition or bug fix. * Add tests for it. This is important so I don't break it in a future version unintentionally. * Commit, do not mess with rakefile, version, or history. (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull) * Send me a pull request. Bonus points for topic branches. == Copyright Copyright (c) 2009 Joshua Nichols. See LICENSE for details.
= sql_valued_columns SqlValuedColumns is an ActiveRecord plugin that will let you have specific SQL statements executed on INSERT / UPDATE. It will call the SQL function you provide, passing the arguments specified in the call to sql_column. See the documentation for SqlValuedColumns::ClassMethods#sql_column for more information regarding usage, including passing Strings and Proc objects as arguments to your SQL function. Example: You have a model with two columns, one named "another_column" and the other named "size_of_another_column". Whenever you insert data into "another_column", you want to have size_of_another_column have the result of the SQL function LENGTH inserted into it. class MyModel < ActiveRecord::Base sql_column :size_of_another_column, "LENGTH", :another_column end Example 2: You have a model with three columns, position, latitude and longitude. Latitude and longitude are values expressed as angles, and position is a special datatype for your database that represents the X/Y/Z projection of that particular latitude and longitude (example: http://www.postgresql.org/docs/8.3/static/earthdistance.html ) When you insert data with latitude and longitude, you want to automatically call a function in your database to transform the latitude and longitude into the appropriate represenation. class MyModel < ActiveRecord::Base sql_column :position, "ll_to_earth", :latitude, :longitude end Example 3: You are an insane criminal who has somehow learned SQL. You would like to make anyone who runs your code to suffer database punishing queries and odd security and data formatting issues that will make them rue the day they ever learned of computers. class MyModel < ActiveRecord::Base sql_column :a_column, "(SELECT count(id) FROM large_list_of_things)", :raw => true sql_column :another_column, '(SELECT count(other_id) FROM other_large_list_of_things WHERE some_column = \'#{some_model_method}\')', :raw => true end == Notes No tests yet, am lazy. == Copyright Copyright (c) 2009 Chris Zelenak. See LICENSE for details.
Cross-platform way of finding executables in all the paths in $PATH. This is similar to the Unix 'which' command, however, instead of finding the first occurence of the executable in $PATH, it finds all occurences in $PATH. This could be useful if you installed something that modified your PATH and now you're executing a different version but can't figure out what happened. Example: On OS X, OpenSSL is installed in /usr/bin/openssl % which openssl ==> /usr/bin/openssl After installing PostgreSQL: % which openssl ==> /Applications/Postgres.app/Contents/MacOS/bin/openssl If you're trying to diagnose what happened, you can use: % whiches openssl ==> [ [0] "/Applications/Postgres.app/Contents/MacOS/bin/openssl", [1] "/usr/bin/openssl" ] This will show you that the first one that is found in the PATH is the one from Postgres, so if you want to get back your original one, you have to modify your PATH accordingly.
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