How do I get all the enum values in TypeScript?

How do I get all the values in an enum list?

The idea is to use the Enum. GetValues() method to get an array of the enum constants’ values. To get an IEnumerable<T> of all the values in the enum, call Cast<T>() on the array. To get a list, call ToList() after casting.

How do I iterate over enum values in TypeScript?

In order to iterate over the values of this enum, we can use the Object. values() built-in function, which returns an array whose elements are the enumerable property values found on the object.

How do I find my enum key?

Get enum name from a value in C#

  1. Using Enum.GetName() method. The standard method to retrieve the name of the constant having the specified value is to use the Enum.GetName() method. This is demonstrated below: …
  2. Using Casting. To get the corresponding constant value from an enumeration member, use casting.

Is value in enum TypeScript?

TypeScript provides an easy to use API to work with enums, both as a type and as a value. TypeScript provides the enum keyword to define a set of labeled values. This can be a set of string or number values. … You are free to set custom numeric values to each member or only some of them.

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Can I iterate through enum?

Enums do not have methods for iteration like forEach() or iterator(). Instead, we can use the array of the Enum values returned by the values() method.

How do you declare an enum?

An enum is defined using the enum keyword, directly inside a namespace, class, or structure. All the constant names can be declared inside the curly brackets and separated by a comma. The following defines an enum for the weekdays. Above, the WeekDays enum declares members in each line separated by a comma.

What is enum in TypeScript?

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 a list in TypeScript?

“create list of objects typescript” Code Answer

  1. //Define an interface to standardize and reuse your object.
  2. interface Product {
  3. name: string;
  4. price: number;
  5. description: string;
  6. }
  7. let pen: Product = {

How do I iterate over a map in TypeScript?

3. Iterating over Map Entries

  1. let nameAgeMapping = new Map(); nameAgeMapping.set( “Lokesh” , 37); nameAgeMapping.set( “Raj” , 35); …
  2. //1. Iterate over map keys. for ( let key of nameAgeMapping.keys()) { …
  3. //2. Iterate over map values. …
  4. //3. Iterate over map entries. …
  5. //4. Using object destructuring.

How do I get the key value of an enum?

How to get enum variable name by its value in C#?

  1. /// This is used to get Enum name by its value as integer.
  2. private static void GetEnumName()
  3. {
  4. int[] enumValues = new int[] { 0, 1, 3, 5 };
  5. foreach (int enumValue in enumValues)
  6. {
  7. Console.WriteLine(Enum.GetName(typeof(MicrosoftOffice), enumValue));
  8. }
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How do you find the value of an enum?

values() method can be used to return all values present inside enum. Order is important in enums.By using ordinal() method, each enum constant index can be found, just like array index. valueOf() method returns the enum constant of the specified string value, if exists. // of color.

How do I find the enum name?

Enum. GetName(Type, Object) Method is used to get the name of the constant in the specified enumeration that has the specified value. Syntax: public static string GetName (Type enumType, object value);

How does TypeScript enum work?

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.

Is enum a type?

An enum type is a special data type that enables for a variable to be a set of predefined constants. The variable must be equal to one of the values that have been predefined for it.

When should I use TypeScript enums?

Enums are just one useful way to organize code in TypeScript. Here are some reasons why enums come in handy: With enums, you can create constants that you can easily relate to, making constants more legible. Developers have the freedom to create memory-efficient custom constants in JavaScript.

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