17 Matching Annotations
  1. Aug 2021
    1. The above works great. However, the problem comes when I want to use literal types for my legal values. In my code, I want to do that so I can make sure I define a "handler" for every legal value: const legalValues = <const>["a", "b", "c"]; // later on... // Because legalValues entries are literal types, // I get a compiler error if I forget to define any behaviors const behaviors: { [K in typeof legalValues[number]]: any } = { a: something, b: somethingElse, c: anotherThing };
  2. Jun 2021
    1. I've seen (and fixed) Ruby code that needed to be refactored for the client objects to use the accessor rather than the underlying mechanism, even though instance variables aren't directly visible. The underlying mechanism isn't always an instance variable - it can be delegations to or manipulations of a class you're hiding behind a facade, or a session store with a particular format, or all kinds. And it can change. 'Self-encapsulation' can help if you need to swap a technology, a library, an object specification, etc.
    2. a principle I use is: If you have an accessor, use the accessor rather than the raw variable or mechanism it's hiding. The raw variable is the implementation, the accessor is the interface. Should I ignore the interface because I'm internal to the instance? I wouldn't if it was an attr_accessor.
    3. But sure, go ahead and enforce self-encapsulation if you like; it makes it easier to do memoization or whatever later on.
  3. Mar 2021
    1. Mutually exclusive categories can be beneficial. If categories appear several places, it's called cross-listing or polyhierarchical. The hierarchy will lose its value if cross-listing appears too often. Cross-listing often appears when working with ambiguous categories that fits more than one place.
  4. en.wikipedia.org en.wikipedia.org
    1. RPython puts some constraints on the Python language such that a variable's type can be inferred at compile time.
  5. Feb 2021
  6. Sep 2020
  7. May 2020
    1. Generally, such legislations apply to any service targeting residents of the region, which effectively means that they may apply to your business whether it’s located in the region or not
    2. These rules usually apply to any company selling to EU residents but may vary for international sellers on a case-by-case basis. It is worth noting, however, that in recent cases US courts have chosen to uphold the applicable EU law.