All Constants Solutions on Gang of Coders

Total of 237 Constants Solutions

What is the difference between #define and const?

C++Constants C Preprocessor

When would I use std::integral_constant over constexpr?

C++Templates C++11 Constants Constexpr

What does the constant 0.0039215689 represent?

C Floating Point Constants Magic Numbers

Defining Local Variable const vs Class const

C#.Net Constants Jit

Is there const in C?

C++C Constants Language Comparisons

How to create Javascript constants as properties of objects using const keyword?

Javascript Object Properties Constants

How extract private static constant in Intellij Idea?

Java Intellij Idea Refactoring Keyboard Shortcuts Constants

Interpolate a constant (not variable) into 'heredoc'

Php Syntax Constants Heredoc

Is it possible to define a class constant inside an Enum?

Python Python 3.x Enums Constants Class Constants

Is it better to remove "const" in front of "primitive" types used as function parameters in the header?

C++Header Constants Primitive Types

Initialization of a constant reference with a number

C++Reference Constants Rvalue Reference

Static Constants in C#

C#String Constants

Do you use constants from the implementation in your test cases?

Unit Testing Constants

How do I create a constant in Python?

Python Constants

Constants in Kotlin -- what's a recommended way to create them?

Kotlin Constants

How to declare a class instance as a constant in C#?

C#.Net Constants

Proper use of const for defining functions

Javascript Function Constants Ecmascript 6

Are there any downsides to marking all variables you don't modify const?

C++Refactoring Constants

Why can const char* const & = "hello" compile?

C++Reference Constants Language Lawyer

Type-inferring a constant in C#

C#Constants Type Inference

Compile-time constants and variables

Java Performance Constants Final Compile Time-Constant

How do I remove code duplication between similar const and non-const member functions?

C++Class Constants Code Duplication C++ Faq

Initialize multiple constant class members using one function call C++

C++Oop Constructor Constants Initializer List

Constants or class variables in ruby?

Ruby Constants Class Variables

Direct array initialization with a constant value

C#Arrays Initialization Constants

Can global constants be declared in JavaScript?

Javascript Variables Constants Global Variables

constant already defined in php

const vector implies const elements?

Differences Between vbLf, vbCrLf & vbCr Constants

vb.net Printing Constants Msgbox

How to have abstract and overriding constants in C#?

C#Polymorphism Constants

Can I use string concatenation to define a class CONST in PHP?

Php Class Constants

PHP Class Constants - Public, Private or Protected?

Return reference to a vector member variable

C++Vector Reference Constants

what is the reason for explicitly declaring L or UL for long values

How can I get the size of an std::vector as an int?

C++Vector Size Constants Unsigned Integer

Are there constants in JavaScript?

Javascript Constants

static const vs #define

How come a non-const reference cannot bind to a temporary object?

C++Reference Constants Temporary C++ Faq

Constants in Objective-C

Ios Objective C Cocoa Nsstring Constants

How to convert a std::string to const char* or char*

C++String Char Constants

Difference between char* and const char*?

C Pointers Constants

Ruby on Rails: Where to define global constants?

Ruby on-Rails Constants Global

Constant pointer vs Pointer to constant

C Pointers Constants

Is it better in C++ to pass by value or pass by constant reference?

C++Variables Pass by-Reference Constants Pass by-Value

Declare a constant array

Arrays Go Constants

How to select multiple rows filled with constants?

Sql Select Constants

Why isn't String.Empty a constant?

.Net String Readonly Constants

Include constant in string without concatenating

Php String Constants Concatenation

What is the temporal dead zone?

Javascript Ecmascript 6 Constants Let

Meaning of 'const' last in a function declaration of a class?

C++Constants Declaration C++ Faq

What does the PHP error message "Notice: Use of undefined constant" mean?

Php Constants Undefined

PHP 5: const vs static

Php Object Constants Class Design Static Members

How can I get all constants of a type by reflection?

C#.Net Reflection Constants

C++: const reference, before vs after type-specifier

C++Reference Constants

How can I get a resource content from a static context?

Java Android Static Constants Android Resources

Why can I change a constant object in javascript

Javascript Ecmascript 6 Constants

How to sort with a lambda?

C++Sorting Lambda Char Constants

Const before or const after?

C++C Syntax Constants

What's the difference between constexpr and const?

C++C++11 Constants Constexpr

Go naming conventions for const

Go Constants Naming Conventions

What is the difference between const_iterator and non-const iterator in the C++ STL?

C++Stl Iterator Constants

How can I specify a [DllImport] path at runtime?

C#C++Dll Constants Dllimport

What is the best way to create constants in Objective-C

Objective C Constants

PHP | define() vs. const

Php Variables Constants Psr 1 Psr 12

Accessing a class's constants

Ruby on-Rails Ruby Constants

Java's final vs. C++'s const

Java C++Constants Final

Purpose of returning by const value?

Class constants in python

Python Constants

What's the point of const pointers?

C++C Pointers Constants

Can I get CONST's defined on a PHP class?

Php Constants Class Constants

constant pointer vs pointer on a constant value

C Pointers Constants

What is meant with "const" at end of function declaration?

Why is there no Constant feature in Java?

Java Constants Final

Creating a constant Dictionary in C#

C#.Net Collections Dictionary Constants

What is the use of interface constants?

Java Interface Constants

How many and which are the uses of "const" in C++?

Javascript (ES6) const with curly braces

Javascript Ecmascript 6 Constants

Elegant solution to duplicate, const and non-const, getters?

"static const" vs "#define" vs "enum"

How do I turn off PHP Notices?

Php Error Handling Constants

C++ where to initialize static const

C++Static Initialization Constants

Why can't I initialize non-const static member or static array in class?

C++Static Constants

Difference between `const shared_ptr<T>` and `shared_ptr<const T>`?

C++Boost Constants Shared Ptr

How to initialize const member variable in a class?

Does PowerShell support constants?

Powershell Constants

C++ map access discards qualifiers (const)

C++Stl Constants Maps

What's the best practice to keep all the constants in Flutter?

Static Dart Flutter Constants

'const int' vs. 'int const' as function parameters in C++ and C

const before parameter vs const after function name c++

C++Function Constants

Const map element access

C++Dictionary Stl Constants

Does const mean thread-safe in C++11?

C++C++11 Thread Safety Constants C++ Faq

How to initialize a private static const map in C++?

C++Static Map Initialization Constants

Declare a const array

C#.Net Arrays Constants Readonly

Storing integer values as constants in Enum manner in java

Java Enums Constants

v8 JavaScript performance implications of const, let, and var?

Javascript Performance Constants V8 Let

Assigning a variable NaN in python without numpy

Python Constants Nan

What is the difference between char s[] and char *s?

C String Char Constants

Why Is `Export Default Const` invalid?

Javascript Scope Export Constants Default

Importing a long list of constants to a Python file

Python Constants Python Import

Overriding class constants vs properties

Php Oop Inheritance Overriding Constants

What's the best way to store a group of constants that my program uses?

Where to store global constants in an iOS application?

Ios Objective C Cocoa Touch Constants Global

How to use Swift struct in Objective-C

Objective C Swift Constants

C++0x lambda capture by value always const?

C++Lambda Constants C++11

Pros and Cons of Interface constants

Php Interface Constants

What is the difference between a const reference and normal parameter?

C++Parameters Reference Constants

Why is argc not a constant?

C++Constants Main Argc Effective C++

How to reference constants in EL?

Jsp Constants El

Do rvalue references to const have any use?

C++C++11 Constants Rvalue Reference

C++ Const Usage Explanation

This source code is switching on a string in C. How does it do that?

C Switch Statement Label Constants

Naming convention for Scala constants?

Scala Naming Conventions Constants

Which is best way to define constants in android, either static class, interface or xml resource?

Android Xml Configuration Constants Static Members

Static constant string (class member)

C++String Class Static Constants

Why isn't the [] operator const for STL maps?

C# naming convention for constants?

C#Naming Conventions Constants

How to declare string constants in JavaScript?

Javascript Constants

Deleting a pointer to const (T const*)

C++Constants Delete Operator

Use of 'const' for function parameters

What is the best practice for adding constants in laravel? (Long List)

Php Laravel Laravel 5 Constants Laravel 5.3

Why catch an exception as reference-to-const?

C++Exception Constants

What is the difference between static const and const?

C Static Constants

does `const auto` have any meaning?

C++C++11 Constants

Define constant variables in C++ header

C++Header Constants

Swift constants: Struct or Enum

Swift Struct Enums Constants

Isn't "const" redundant when passing by value?

C++Constants Pass by-Value

Time consts in Java?

Java Date Time Constants

PHP - define constant inside a class

Php Class Constants

Does C++11 allow vector<const T>?

C++Vector C++11 Constants

ECMAScript 2015: const in for loops

Javascript For Loop Scope Constants Ecmascript 6

Is 'auto const' and 'const auto' the same?

C++C++11 Language Lawyer Constants Auto

How can I portably call a C++ function that takes a char on some platforms and a const char on others?

C++Constants Portability

Can parameters be constant?

C#Constants Readonly Parameter Passing

What is the best way to define log TAG constant in Kotlin?

Java Android Kotlin Constants

Variably modified array at file scope

C Objective C Arrays Static Constants

Advantages of using const instead of variables inside methods

C#Coding Style Resharper Constants

What is the difference between immutable and const variables in Rust?

Rust Constants Immutability

Pedantic gcc warning: type qualifiers on function return type

C++Constants Gcc Warning

Why are references not "const" in C++?

C++Reference Constants Language Lawyer Decltype

Why can a const member function modify a static data member?

C++Function C++11 Static Constants

PHP Constants Containing Arrays?

Php Arrays Constants Scalar

Keyword 'const' does not make the value immutable. What does it mean?

Javascript Ecmascript 6 Constants

What is the difference between a static and const variable?

C++C Static Constants

Check if a constant is already defined

Dynamic constant name in PHP

Php Constants Indirection

Dynamic constant name in PHP

Php Constants Indirection

C++ style cast from unsigned char * to const char *

C++Constants Casting

What is the meaning of a const at end of a member function?

const char* and char const* - are they the same?

C++Pointers Constants

#define vs const in Objective-C

Objective C Constants C Preprocessor

How to make a for loop variable const with the exception of the increment statement?

C++Algorithm For Loop Variables Constants

Unable to free const pointers in C

C Constants Free

How to initialize a const field in constructor?

C++Constructor Constants Ctor Initializer

Does const-correctness give the compiler more room for optimization?

C++C Pointers Constants Const Correctness

solutions to the annoying "warning: already initialized constant" message

How to check if a defined constant exists in PHP?

Php If Statement Constants Fuelphp

Why is a const variable sometimes not required to be captured in a lambda?

C++Lambda Constants Language Lawyer

What is the difference between const int, const int const, and int const *?

C++C Pointers Constants C++ Faq

Why can't I have "public static const string S = "stuff"; in my Class?

const& , & and && specifiers for member functions in C++

C++C++11 Constants

React create constants file

Javascript Reactjs Constants

const vs constexpr on variables

C++Variables C++11 Constants Constexpr

What is the difference between "const" and "val"?

Constants Kotlin

Accessing a class constant using a simple variable which contains the name of the constant

Php Class Variables Constants

What is the use of "static" keyword if "let" keyword used to define constants/immutables in swift?

Swift Static Constants

What is the purpose of Decimal.One, Decimal.Zero, Decimal.MinusOne in .Net

C#.Net vb.net Decimal Constants

Returning a const reference to an object instead of a copy

How to declare a constant in Java?

How to define static constants in a Java enum?

Java Enums Constants

What is the use of const overloading in C++?

C++Function Constants Overloading

Where to declare/define class scope constants in C++?

C++Constants Declaration

Mixing extern and const

C++C Constants Scope Extern

Const in JavaScript: when to use it and is it necessary?

Javascript node.js Constants Immutability

const to Non-const Conversion in C++

Why doesn't PHP permit private const?

Php Oop Constants Private Encapsulation

What is a constant reference? (not a reference to a constant)

C++Reference Constants

Why would you use the keyword const if you already know variable should be constant?

C++C Constants Keyword

What is the difference between the "const" and "final" keywords in Dart?

Dart Constants Keyword Final

Why does JSHint throw a warning if I am using const?

Javascript node.js Constants Jslint Jshint

Declaring static constants in ES6 classes?

Javascript Class Constants Ecmascript 6

Swift: Global constant naming convention?

Naming Conventions Constants Swift Global

What kind of optimization does const offer in C/C++?

C++C Constants Compiler Optimization

constexpr vs. static const: Which one to prefer?

C++C++11 Constants Constexpr

Why must const members be initialized in the constructor initializer rather than in its body?

C++Constructor Initialization Constants

int vs const int&

C++Coding Style Reference Constants

casting non const to const in c++

C++Types Casting Constants

What is the best way to implement constants in Java?

What is the difference between const and readonly in C#?

C#.Net Constants Readonly

'Static readonly' vs. 'const'

How to declare a constant Guid in C#?

C#Constants Guid Compile Time-Constant

Are private constants possible in PHP?

Php Constants Private

Returning temporary object and binding to const reference

C++Reference Constants

"sending 'const NSString ' to parameter of type 'NSString ' discards qualifiers" warning

Objective C Nsstring Warnings Constants

What's the reasoning behind putting constants in 'if' statements first?

C++Coding Style Constants If Statement

How do I specify an integer literal of type unsigned char in C++?

C++Integer Constants Language Lawyer

PHP - use array as class constant

Php Arrays Constants

How to declare a static const char* in your header file?

What is the type of string literals in C and C++?

C++C String Constants

Namespace constant in C#

C#Namespaces Constants

Const correctness in C vs C++

non-member function cannot have cv-qualifier

C++Templates Constants

Check if a class constant exists

Use if else to declare a `let` or `const` to use after the if/else?

Javascript If Statement Reactjs Constants Let

How do I declare an array as a constant in Objective-c?

Objective C Arrays Constants

Scope of Constants in Ruby Modules

Ruby on-Rails Ruby Module Constants

How to redefine a Ruby constant without warning?

Ruby Constants Redefine Redefinition

What's the point of const void?

C++C Function Constants Void

Morbid use of constants

Whyever not declare a function to be `constexpr`?

C++C++11 Constants Constexpr Function Declaration

constexpr const vs constexpr variables?

C++C++11 Constants Constexpr

How to get name of the constant?

Php Class Constants

How do I define constant values of UIColor?

Objective C Cocoa Touch Constants Uicolor

Java multiple arguments dot notation - Varargs

What is the difference between char * const and const char *?

C Pointers Constants

Pointer declared as constant as well as volatile

C Constants Volatile

Conditionally initializing a constant in Javascript

Javascript Ecmascript 6 Constants

Double pointer const-correctness warnings in C

C Constants Implicit Conversion Qualifiers Multiple Indirection

When to use static constant and variable in Swift?

Ios Swift Variables Static Constants

What's the difference between const array and static const array in C/C++

C++C Arrays Static Constants

How can I use enum in C# for storing string constants?

.Net String Constants Enums

Can I use const in vectors to allow adding elements, but not modifications to the already added?

C++Stl Constants

Can you use static constants inside classes in PHP?

Php Class Variables Syntax Constants

Infinite loop in constructor without for or while

C++Recursion Constructor Constants

Disable check of camel case rule in eslint

Constants Eslint Camelcasing Disable

Why can't I convert 'char**' to a 'const char* const*' in C?

C Pointers Constants Const Correctness

Is the sizeof(enum) == sizeof(int), always?

C Enums Constants C Preprocessor

How to avoid code duplication implementing const and non-const iterators?

C++Iterator Constants Dry

What are top-level const qualifiers?

Are variables declared with let or const hoisted?

Javascript Ecmascript 6 Constants Let Hoisting

Why is `const T&` not sure to be const?

C++Templates Constants Function Templates Const Reference

Where are constant variables stored in C?

C Variables Memory Management Constants Global

Constant DateTime in C#

C#Datetime Attributes Constants

why does accessing an element in an array take constant time?

C Arrays Time Constants Complexity Theory

Abstract constants in PHP - Force a child class to define a constant

Php Constants Abstract

Can a const variable be used to declare the size of an array in C?

C Arrays Constants

Why would someone use #define to define constants?

C++Constants C Preprocessor

static const vs. const static

C++Class Constants