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Writing Elm @ LearningLoop.com

Peter Gao peteygao

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Writing Elm @ LearningLoop.com
22 followers · 9 following
  • CTO @ LearningLoop.com
  • Singapore / San Francisco
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@peteygao
peteygao / post-merge
Last active August 29, 2015 14:05
Using git hook to notify us when schema.rb and Gemfile changes after a pull
#!/usr/bin/env ruby
class String
# Give our output some colour option :D!
def black; "\033[30m#{self}\033[0m" end
def red; "\033[31m#{self}\033[0m" end
def green; "\033[32m#{self}\033[0m" end
def blue; "\033[34m#{self}\033[0m" end
def yellow; "\033[33m#{self}\033[0m" end
def magenta; "\033[35m#{self}\033[0m" end
@peteygao
peteygao / gist:4177597
Created November 30, 2012 18:30
Cleaner way of handling nested exceptions?
# This is ugly... What's a better way?
begin
@beans = beans.find(params[:id])
begin
@beans.destroy
rescue ActiveRecord::StaleObjectError => exception
end
rescue ActiveRecord::RecordNotFound => exception
end
@peteygao
peteygao / emoji.rb
Last active November 13, 2015 21:55
Ruby emoji programming fun! Sometimes you do the 🍴ing, and sometimes you do the 💩ing!
def method_missing symbol, *args
return symbol.id2name
end
def 🍴 😋=nil
@👅 ||= []
@👅 << 😋 if 😋
@👅
end
@peteygao
peteygao / gist:5216382
Created March 21, 2013 20:23
Returning a structure like Array[Object] in Ruby
require 'ostruct'
# Given this array[hash[hash]] structure
a = [{"object" => {param1: true, param2: false}},{"object" => {param1: false, param2: true}}]
# I want to return:
=> [<OpenStruct param1=true, param2=false>, <OpenStruct param1=false, param2=true>]
# Current code:
a.map { |k| k.map { |k,v| OpenStruct.new v } }
@peteygao
peteygao / gist:5629536
Created May 22, 2013 17:59
Attempting to inheriting an instance method from a module and then outputting a class variable that was defined in the base class. However it is not currently working :(.
class Awesome
@@troll = "ME!"
end
module MyGem
module Namespace
def trolling
puts @@troll
end
end
@peteygao
peteygao / gist:8324835
Created January 8, 2014 21:17
Is it possible to evaluating object/array accessors in JavaScript without using eval()?
/*
Scenario: App requests the user to provide accessors to an JSON object that they also provide.
e.g. User provides the following JSON object:
{ people: [
{ firstName: "Bob", lastName: "Jones" },
{ firstName: "Jane", lastName: "Jones" }
], numbers: [1, 2, 3]
}
The JSON object is saved to the 'data' variable by the app.
@peteygao
peteygao / gist:8448895
Last active January 3, 2016 10:19
Jasmine testing pitfall: .join(', ') joins properties that Jasmine has injected into the prototypical inheritance chain
// List of badly formatted emails
var _badEmails = ['bad@email', 'roar@me'];
var _validationMessage = 'Invalid emails: ' + badEmails.join(', ');
// _validationMessage should be: 'Invalid emails: bad@email, roar@me'
expect(_validationMessage).toBe('Invalid emails: ' + _badEmails.join(', ')
// However, the expect statement fails as validationMessage becomes:
'Invalid emails: bad@emails, roar@me, function () {
@peteygao
peteygao / error.log
Created March 1, 2016 21:45
Rubinius 3.19 compilation failure partial stack trace
1: LD vm/vm
vm/llvm/artifacts/disassembler.cpp.o: In function `rubinius::JITDisassembler::JITDisassembler(void*, unsigned long)':
/home/pyg/src/rubinius-3.19/vm/llvm/disassembler.cpp:34: undefined reference to `llvm::sys::getDefaultTargetTriple[abi:cxx11]()'
/home/pyg/src/rubinius-3.19/vm/llvm/disassembler.cpp:44: undefined reference to `llvm::TargetRegistry::lookupTarget(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&)'
/home/pyg/src/rubinius-3.19/vm/llvm/disassembler.cpp:52: undefined reference to `llvm::sys::getHostCPUName[abi:cxx11]()'
/home/pyg/src/rubinius-3.19/vm/llvm/disassembler.cpp:57: undefined reference to `llvm::sys::getHostCPUName[abi:cxx11]()'
vm/llvm/artifacts/jit_context.cpp.o: In function `rubinius::Context::Context(rubinius::LLVMState*)':
/home/pyg/src/rubinius-3.19/vm/llvm/jit_context.cpp:114: undefined reference to `llvm::DataLayout::getStringRepresentation[abi:cxx11]()
@peteygao
peteygao / error.log
Last active March 1, 2016 23:50
Rubinius 3.15 Docker image fails to install sinatra
Mar 1 03:46:40 [267] command line: gem install sinatra
Mar 1 03:46:40 [267] node info: b0c4e5a8c4c9 #1 SMP Tue Nov 3 19:10:07 UTC 2015
Mar 1 03:46:40 [267] process info: root rbx 267 3.15 2.2.2 2016-02-23 2016-02- 3.4 JIT
Mar 1 03:46:40 [267] <Fatal> The Rubinius process is aborting with signal: SIGSEGV
Mar 1 03:46:40 [267] <Fatal> --- begin system info ---
Mar 1 03:46:40 [267] <Fatal> node info: b0c4e5a8c4c9 #1 SMP Tue Nov 3 19:10:07 UTC 2015
Mar 1 03:46:40 [267] <Fatal> --- end system info ---
Mar 1 03:46:40 [267] <Fatal> --- begin rubinius info ---
Mar 1 03:46:40 [267] <Fatal> process info: root rbx 267 3.15 2.2.2 2016-02-23 2016-02- 3.4 JIT
Mar 1 03:46:40 [267] <Fatal> --- end rubinius info ---
@peteygao
peteygao / error.log
Created March 2, 2016 01:30
Rubinius ./configure && rake -q build
21:38 $ ./configure && rake -q build
Checking gcc: found
Checking g++: found
------------------------------ Deprecation notice ------------------------------
Support for compilers other than clang/clang++ is deprecated and will be
removed soon. If your platform does not have support for clang/clang++,
please notify us.
--------------------------------------------------------------------------------
Checking for 'llvm-config': found! (version 3.4.2 - api: 304)