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- Dictionaryconstant/ˈkɒnst(ə)nt/
adjective
- 1. occurring continuously over a period of time: "the constant background noise of the city" Similar Opposite
noun
- 1. a situation that does not change: "the condition of struggle remained a constant"
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Apr 21, 2010 · Note that back in 2010, this answer made sense, but ever since Python 3.4's release in 2014, the answer is "you want to use enum for this", which lets you set an immutable with optional value (because there are two kinds of constants: (1) ones used as a stable key, in which the actual value is irrelevant: the const itself is the value, and (2) ones used for store fixed values)
May 18, 2017 · If you use the @JvmField annotation then after it compiles the constant gets put in for you the way you would call it in java. Just like you would call it in java the compiler will replace that for you when you call the companion constant in code. However, if you use the const keyword then the value of the constant gets inlined.
Nov 29, 2009 · in c# language: according to msdn refrence: You use #define to define a symbol. When you use the symbol as the expression that's passed to the #if directive, the expression will evaluate to true, as the following example shows: # define DEBUG. The #define directive cannot be used to declare constant values as is typically done in C and C++ ...
def MY_CONSTANT(): return "Whatever" Now in theory, calling MY_CONSTANT() acts just like a constant. EDIT. Like the comments says, someone can go and change the value by calling. MY_CONSTANT = lambda: 'Something else' but don't forget the same person can call MY_CONSTANT = "Something else" in the first example and change the initial value. In ...
Sep 18, 2015 · while the above cleverly adds a constant property to a class, the actual value for the constant is "outside" the class definition "{}", which really violates one of the definitions of encapsulation. I guess it is sufficient to just define a constant property "inside" the class and there is no need for the get in this case. –
Oct 9, 2012 · indeed, it isn't compile-time constant. However, the definition "In computer programming, a constant is a value that cannot be altered by the program during normal execution, i.e., the value is constant" does not strictly require it being compile-time constant, but a run-time one, so this answer is still correct. –
May 1, 2011 · Like the C compiler directive, `define is global for the compilation. If your code is ever going to be used with code you don't control you will need to be careful here. Parameters are always local to the module scope so identically named parameters in different design elements will not conflict with each other.
While I agree with "It is probably a better practice to define a CSS class and re-use it on each element you want to assign the color to ", a problem with this approach is where the colour is to be applied for different attributes - for example I have an SVG rect element that should be the same colour as the background for some li element, the svg rect requires fill:red while the li element ...
Aug 15, 2012 · The reason to use enums instead of macro constants or const int for constant integer values is the fact this is the only type-safe way to declare a constant integer which can be portable used as an array boundary. Well...
Feb 24, 2020 · I would like to avoid having constant values hardcoded in my C files, so I was wondering if i had a way to intialize a struct constant directly in a header file to use it everywhere i included the header file? (in the way #define works for constants with simple types) All answers i found so far have been: const int var = 5; /*in header*/
