Can enum be string?
The enum can be of any numeric data type such as byte, sbyte, short, ushort, int, uint, long, or ulong. However, an enum cannot be a string type.
What is an enum in JavaScript?
Enums are one of the few features TypeScript has which is not a type-level extension of JavaScript. Enums allow a developer to define a set of named constants. Using enums can make it easier to document intent, or create a set of distinct cases. TypeScript provides both numeric and string-based enums.
Can I use enum in JavaScript?
Enums are not supported in JavaScript natively. We can however create Enums using Object. freeze by creating objects containing all the enumerable properties and then freezing the object so that no new enum can be added to it.
What is enum TS?
Enums or enumerations are a new data type supported in TypeScript. Most object-oriented languages like Java and C# use enums. This is now available in TypeScript too. In simple words, enums allow us to declare a set of named constants i.e. a collection of related values that can be numeric or string values.
How do I create an enum for a string?
You can create Enum from String by using Enum. valueOf() method. valueOf() is a static method that is added on every Enum class during compile-time and it’s implicitly available to all Enum along with values(), name(), and cardinal() methods.
What is similarity between enum and struct?
1) What is the similarity between a structure, union and enumeration? The correct option is (a). Explanation: A structure, enumeration and union all of them can be helpful in defining a new data types in C language.
Is enum or constant better?
Enums limit you to the required set of inputs whereas even if you use constant strings you still can use other String not part of your logic. This helps you to not make a mistake, to enter something out of the domain, while entering data and also improves the program readability.
