There are four different aspects to enums in TypeScript you need to be aware of. First, some definitions: "lookup object" If you write this enum: enum Foo { X, Y } TypeScript will emit the following object: var Foo; (function (Foo) { Foo[Foo["X"] = 0] = "X"; Foo[Foo["Y"] = 1] = "Y"; })(Foo || (Foo = {})); I'll refer to this as the lookup object. Its purpose is twofold: to serve as a mapping from s

The main job of React is to figure out how to modify the DOM to match what the components want to be rendered on the screen. React does so by "mounting" (adding nodes to the DOM), "unmounting" (removing them from the DOM), and "updating" (making changes to nodes already in the DOM). How a React node is represented as a DOM node and where and when it appears in the DOM tree is managed by the top-le

I am using create-react-app. I am trying to call an image from my public folder from a file inside my src/components. I am receiving this error message. ./src/components/website_index.js Module not found: You attempted to import ../../public/images/logo/WC-BlackonWhite.jpg which falls outside of the project src/ directory. Relative imports outside of src/ are not supported. You can either move it

Before I do a small release and tag it, I'd like to update the package.json to reflect the new version of the program. Is there a way to edit the file package.json automatically? Would using a git pre-release hook help?

Sometimes, Activerecord data types confuse me. Err, often. One of my eternal questions is, for a given case, Should I use :decimal or :float? I've often come across this link, ActiveRecord: :decimal vs :float?, but the answers aren't quite clear enough for me to be certain: I've seen many threads where people recommend flat out to never use float and always use decimal. I've also seen suggestions

I have a Rakefile that compiles the project in two ways, according to the global variable $build_type, which can be :debug or :release (the results go in separate directories): task :build => [:some_other_tasks] do end I wish to create a task that compiles the project with both configurations in turn, something like this: task :build_all do [ :debug, :release ].each do |t| $build_type = t # call t

I installed docker on a Debian 7 machine in the following way $ echo deb http://get.docker.io/ubuntu docker main > /etc/apt/sources.list.d/docker.list $ sudo apt-get update $ curl -sSL https://get.docker.com/ubuntu/ | sudo sh After that when I first tried creating an Image it failed with the following error time="2015-06-02T14:26:37-04:00" level=info msg="[8] System error: write /sys/fs/cgroup/doc

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