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

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be deduced by the compiler, rather than spelled out explicitly in the code: Function template argument deduction A function template can be invoked without explicit template arguments.

div style={styles.Container}>

TODO

Furthermore, in its Capitalization Conventions document, Microsoft very directly states that field identifiers should be named via PascalCasing and gives the following examples for MessageQueue.InfiniteTimeout and UInt32.Min: public class MessageQueue form of pos sparse_hash_map STL-like entity; follows STL naming conventions LONGLONG_MAX a constant, as in INT_MAX Commentssame syntax as for function parameter comments: auto [/*field_name1=*/bound_name1, /*field_name2=*/bound_name2] = ... In reality all it takes for someone to change the value is this: globals()["PI"+str(id("PI"))] = 3.1415 Conclusion: Use PascalCasing for public constants (which are documented as const or static readonly fields). I've recently found a very succinct update to this which automatically raises meaningful error messages and prevents access via __dict__: class CONST(object): Note that the code is far from easy for a reader wondering about constants. See explanation below. def constant(f):

Class template argument deduction See below. Structured bindings When declaring a tuple, struct, or array using auto, you can Use caution when you refer to constant values defined in other code such as DLLs. If a new version of the DLL defines a new value for the constant, your program will still hold the old literal value until it is recompiled against the new version. The all upper case name tells you it is intended to be a constant. That is what is important. Not a language forcing constraints on code you have the power to change anyway.style_images = {k: tf.nn.avg_pool(style_image, ksize=[3,3], strides=[1,1], padding='SAME') for k, style_image in style_images.items()} So, instead of adding the styles inline directly, as we did in the previous example, we just pass the object variables as you see below: /** src/todo/AddTodo.js **/ 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 Using styled-components, we can create reusable components with styles. It is quite exciting to create and use.