Carolyne Roehm: Style & Design: A Constant Thread: Style and Design

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While many libraries and CSS engines provide ways for styling in your React application, it is important to note that it’s not a one-size-fits-all approach to settling for the best React styling solution. styled-components come with a large computing overhead when converting declarations to plain CSS. This can affect the performance of your application. Styled-components also require time to get familiar with the syntax and procedures. There's no perfect way to do this. As I understand it most programmers will just capitalize the identifier, so PI = 3.142 can be readily understood to be a constant. picasso_demoiselles_avignon='https://upload.wikimedia.org/wikipedia/en/4/4c/Les_Demoiselles_d%27Avignon.jpg', Unfortunately the Python has no constants so yet and it is shame. ES6 already added support constants to JavaScript ( https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Statements/const) since it is a very useful thing in any programming language.

Following your example, you'll remember that in Java we must define the constant inside some class; because you didn't mention a class name, let's call it Foo. Here's the Java class: public class Foo { E external/local_xla/xla/stream_executor/cuda/cuda_fft.cc:607] Unable to register cuFFT factory: Attempting to register factory for plugin cuFFT when one has already been registered div style={Container}>

TODO

A frozen space (FrozenSpace)

same syntax as for function parameter comments: auto [/*field_name1=*/bound_name1, /*field_name2=*/bound_name2] = ... sc.y = {} # raise "AttributeError: Cannot reassign members" A space of frozen values (SpaceFrozenValues)

Note that the code is far from easy for a reader wondering about constants. See explanation below. def constant(f): This next idiom is a modification of the SpaceConstants in where referenced mutable objects are frozen. This implementation exploits what I call shared closure between setattr and getattr functions. The value of the mutable object is copied and referenced by variable cache define inside of the function shared closure. It forms what I call a closure protected copy of a mutable object. In many JavaScript environments, creating a global object variable may be bad practice, but it’s fine in React. Because files are not visible to other files unless imported, we can create as many object variables even with the same name without conflict. Sharing styles across many React components few years from now. Be mindful of our scale With a codebase of 100+ million lines and thousands of engineers, We will use a component that is part of a to-do application to explain these methods. While also considering the pros and cons of the styling options examined in the article.

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explicitly initialized to undefined to prevent later shape changes. Properties used outside of class lexical scope