Enum javascript key value. "MoveId") and return its integer value of 4.

Enum javascript key value You can add as many enum values as needed. Jun 22, 2023 · Enums are great because they make our code more readable, and therefore maintainable, by providing a clear and concise way to represent a group of related values. There are many more use cases and we will explore them in this guide. Get a random enum value in TypeScript with ease using this simple method. We can define an object with properties that correspond to the enum values and assign them a value. I would like to iterate a TypeScript enum object and get each enumerated symbol name, for example: enum myEnum { entry1, entry2 } for (var entry in myEnum) { // use entry's name here, e. However, JavaScript lacks built-in enum support which can make them confusing for JS developers. That means there is no simple reverse mapping in your case. The body of an enum consists of zero or more enum members. Using an enum is simple: just access any member as a property off of the enum itself, and declare types using the name of the enum. Apr 9, 2025 · Discover 5 easy methods to convert TypeScript enums to arrays. values(NubDirection). This feature can be useful when you need to convert between numeric values and their associated symbolic names. Workaround: Getting a reverse mapping for string enum members To get the key of an enum member by its value, you have to iterate through the enum keys and compare the associated value with your target Mar 10, 2024 · This post covers the Iterate strings or numbers of an Enum in javascript/typescript example Iterate key and values using Object Inbuilt methods using for in loop, foIn lodash operator Jun 2, 2025 · Sometimes, we want to iterate over a TypeScript enum — for instance, to perform certain actions for every element in the enum, such as rendering options in a UI or validating input values. As TS transpiles to JavaScript, the resulting code needs some kind of data format that stores these relations. Let's use an example enum that represents actions a content blocker can take. Sep 28, 2021 · JavaScript doesn't support enum as a built-in type, but here's how you can use `map()` with userland enum objects. So Object. freeze (making it unchanging). The accepted answer tells you how to get the value by the key. This tutorial shows you how to retrieve all available values of a TypeScript enum. Jan 26, 2015 · Is it possible to add functions to an Enum type in TypeScript? for example: enum Mode { landscape, portrait, // the dream toString() { console. Jul 7, 2021 · You need to narrow the type of your suite key with a type constraint. According to Google's coding conventions this is not the correct way to name an enum, since the enum values should be ALL_CAPS, not UpperCamelCase. key values instead of number values that correspond to the deprecated event. Jul 23, 2025 · Enums in JavaScript are used to represent a fixed set of named values. values () to get the actual values (like "Monday", "Tuesday") and log them See full list on sohamkamani. For example we can give each of the Colors a name and hex value: Jan 4, 2022 · Also, the value (object with enum key and value) attached to the keys (e. which and event. By default an enum is number based, starting at zero, and each option is assigned an increment by one. g test1, test2) available in testData should be the ones from enum MyEnum. So here is my enum: const appearances = { 1: 'ready', 2: 'stroke', Aug 1, 2024 · By using the Object. entries() produces an array of arrays from a dictionary, and I had to convert this back into a dictionary so that my existing code continued to work with either type. values here), counting only non-numeric items. . Feb 26, 2024 · To get all enum values as an array, pass the enum to the Object. Not necessarily all values from the enum MyEnum should be present (partials) but one should not be able to add any random key-value pairs apart from the enum key-value pairs. Each key in the object corresponds to an enum value, and its value is a string representing that value. Aug 3, 2022 · An Enum is a way of giving more friendly names to a set of values. So, this can be more closely replicated with a JavaScript Object. Use JavaScript enums (via objects or Symbols) to define fixed value sets like roles, statuses, or directions. random() * length)+1)] returns a string or an Sep 2, 2024 · Approach 1: Manual Mapping Manually iterate through the enum keys and values, creating an array of objects. They also carry a named set of constants. Syntax: for (const key in Enum) { // Use 'value' as needed } Example: The below code Feb 5, 2019 · I'm trying to create a guaranteed lookup for a given enum. The diverse syntactical elements make TypeScript an intriguing yet complex language. Within the Sep 27, 2021 · Given what an Enum is – an unchanging set of key/value pairs, we can create an object (which can contain a set of key-value pairs) – and then freeze it using Object. I need to use MyEnum[x] though (in a method that returns a MyEnum), where x is a calculated value that results in one of the valid enum options, how do I go about it? May 5, 2024 · Enums are a fundamental feature in many programming languages, providing a convenient way to work with sets of named constants. This how the enum is transpiled to javascript (Typescript playground) Jul 3, 2024 · Ways to Implement Enum in Javascript Enum Using Objects Enums can be implemented in Javascript using objects. Some functions don&amp;#039;t behave as expected when an enum has number values or mixed type data. values () method to get all the values in the form of an array. This guide provides a straightforward overview of different methods to access enum values in TypeScript, including bracket notation, dot notation, object lookup, and using Object. The convertStringToEnum function takes two parameters: stringValue represents the string value to convert, and enumObject is the object representing the enum. So if you're looking for a quick and easy way to get a random enum value, this is the method for you. keys(Color). This tutorial shows you how to retrieve all available keys of a TypeScript enum. Enums allow a developer to define a set of named constants. I would like to filter my data based on the keys of the enum and return an object. values method will return an array of the enum's values because enums in TypeScript are real objects and exist at runtime. Covers numeric and bidirectional enums with practical usage tips. TypeScript brings static analysis. indexOf(nextStringedEnum); Enums Enums are a feature added to JavaScript in TypeScript which makes it easier to handle named sets of constants. So for (let item in MotifIntervention) { doThing(item) } will fail if typeof doThing function is (arg: MotifIntervention) => void. Feb 20, 2023 · Here's how you can convert a TypeScript or JavaScript enum to a string, or enum value to a string. entries() static method returns an array of a given object's own enumerable string-keyed property key-value pairs. we will learn about creating enums Nov 21, 2016 · Using value of enum as key in another enum in Javascript Asked 11 years, 10 months ago Modified 9 years ago Viewed 17k times Oct 2, 2020 · I have an enum with two keys. It’s “string-like” because enums are more strict in types and require a specific string value: one of the available keys. In TS, you can parse 1 into Role. These can be used to build other data structures. For example lets say I have a variable set to 1 and I want to print out "vacuum", how do I do that: Sep 28, 2022 · I would like to know if it is possible to assign an enum as a key to an object in an interface? I wrote the snippet bellow to test if is (or isn't) possible. Enums can also store a key-value pair. 4, you can use a combination of keyof typeof and const assertions to create objects that can have the same type safety as enums, and still hold complex values. It creates an object which will map the string keys to numbers and numbers back to those keys (Documentation) Reverse mappings In addition to creating an object with property names for members, numeric enums members also get a reverse mapping from enum values to enum names. namespace. # Using reverse mappings when comparing enums When using numeric enums, you can use reverse mappings to get the corresponding key based on a value. Though JavaScript has no support for a native enum type, it is possible to define enums using various approaches. floor((Math. You can provide a name and value, like a key-value pair, for your enums. However, enum values are required to be valid identifiers, and we’re encouraged to use SCREAMING_SNAKE_CASE by convention. entries. If I have a value, is there a way to print the name of the enum. Feb 1, 2024 · TypeScript enums are similar to JavaScript objects. Apr 24, 2023 · In this guide, we have learned how to get an enum key by value in TypeScript. keys, but it returned 6 keys, 0-5, I think it occours because when I tried foreach the enum, this returned keys and This doesn’t work if you're expecting to loop through values of the enum type. This tutorial shows you how to use a string value as an enum key to access the related enuTable = // Table enum { enuUnknown: 0, enuPerson: 1, enuItem: 2, enuSalary: 3, enuTax: 4, enuZip: 5, enuAddress: 6, enuLocation: 7, enuTasks: 8, }; In part of the code I get a return value from an AJAX call that is a number corresponding to one of the above tables. JavaScript enumeration: a basic representation Step 1. These May 29, 2025 · Learn how to get Enum key by value in TypeScript with easy code examples and step-by-step explanations for better enum handling in TypeScript projects. Feb 26, 2024 · Now we can use an index to access the specific key or value of the enum. Jul 20, 2025 · The Object. Enumerations, or enums, provide a way to define a set of named constants representing discrete values. export enum colorsEnum{ red,blue, Apr 24, 2025 · Learn 5 reliable methods to check if a value exists in TypeScript enums. export class RewardCategory { public static readonly swapPoints = new RewardCategory('swapPoints', 'Swap Points'); public static readonly charity = new RewardCategory('charity', 'Charity'); public static readonly discountVouchers = new RewardCategory Sep 4, 2022 · Am I forced to always match identically the enum value and enum key to be able to index the enum dynamically, or do I have to use some string value manipulation to ensure the key matches the value? Jun 26, 2016 · Note that you can also have mixed enums. Mar 30, 2024 · Learn about TypeScript enum use cases, how to convert to/from strings, iterate through values and keys, and when to use other types instead. length (you can also use Object. Aug 3, 2022 · How to get enum key with enum value in typescript Asked 3 years, 3 months ago Modified 1 year, 7 months ago Viewed 4k times As of Typescript 3. key property, with an explanation of what the key is typically used for. This article attempts to list the built-in data structures available in JavaScript and what properties they have. Jul 10, 2020 · The accepted answer on that post is contradictory. And I need to get the value from it already on the PropType call. Check type-safe validation techniques for string and numeric enums with real examples. Example: The below example will illustrate the use of the above method to get the names of enum entries in the form of an array. Jul 8, 2025 · Programming languages all have built-in data structures, but these often differ from one language to another. In this example, MyEnum is an object that represents an "enum" in JavaScript. And create static readonly instances of your class. Enum members have numeric value (sic) associated with them . Enums are very similar to constants but they offer more data structure. We can use a combination of different techniques with "Object. values()" method to access the values. TypeScript Series Overview Jun 11, 2015 · It's not possible to ensure the parameter is an enum, because enumerations in TS don't inherit from a common ancestor or interface. , &q In a JavaScript function, I would like to be able to supply the string representation of an enum key (i. com Jan 11, 2021 · JavaScript doesn't have an official enum type, but there are several design patterns that let you define enums using vanilla JavaScript. This is why we used the filter() method in the first example - to exclude all of the unnecessary values from the array. Jan 17, 2022 · @AlexIronside yes, but a const is a better type for this use case than an enum. You can access the values with a string-like value. " From the TypeScript documentation on enum s: Enums allow us to define a set of named numeric constants. model. Within the In this example, MyEnum is an object that represents an "enum" in JavaScript. enum ArchiveStatus { Current = 0, Archive = 1, } const data = [{name:'A', May 24, 2020 · Why use enums in Javascript, different ways to implement them, and other Javascript concepts you learn along the way - Object class methods, Proxy API, etc. Here are a couple of ways to do that in Javascript What is an enum? Essentially an enum is a set of unique named constants, like UP, DOWN, NORTH, WEST, LEVEL1, LEVEL2 etc. READ_ONLY_USER. All enum-related solutions are on this page. Jul 23, 2025 · We use Object. Your code is buggy: length() doesn't exists, e[Math. Sep 30, 2016 · In TypeScript, I want to compare two variables containing enum values. filter (isNaN). TypeScript Series Overview 522 UPDATE I don't think my answer below is the best way to write enums in JavaScript anymore. Below, you can see the demo of a javascript object with key-value pair. By following the above steps, you can easily implement this functionality in your TypeScript applications. Here's what you need to know. String Tagged with javascript, typescript, programming, node. You can use [ ] however to extract the property values in the second object literal. While JavaScript does not have a built-in enum type like some other programming languages, developers can create enums using objects. Mar 5, 2019 · var enums = { '1': 'HELLO', '2' : 'BYE', '3' : 'TATA' }; I want to be able to convert that into an array that looks like this, [ { number:'1', word:'HELLO May 15, 2019 · I have a const that is acting like enum in my case. populate selection lists with it etc. Background This is similar to the ts-keycode-enum module, but it provides an enum with string values that correspond with the event. Jun 5, 2020 · If you want to get your enum key by value in that case you have to rewrite your enum in following manners: But same format also might be work in older version as well. . keys () and Object. These approaches make the code more expressive, self-documenting, and less error-prone. keys (ExampleEnum). filter(k => isNaN(Number(k))); to get my enum keys list. READ_ONLY_USER, and 'READ_ONLY_USER' into Role. Oct 29, 2024 · Once you have retrieved the keys and values from an enum, you can use them in various scenarios like iterating over enum keys or values, performing lookups, or mapping enum values to corresponding keys. Here's my minimal code example: Jan 4, 2024 · Exploring Enum Key Extraction Strategies in TypeScript When it comes to the TypeScript language, particularly in exploring Enumeration (Enum) Key extraction strategies and how to get Enum Key by Value, there is much to consider for a developer. keys() and Object. When used with numeric enums, the Object. Jan 25, 2024 · TypeScript Enums are a feature carrying a named set of constants. The plain object, frozen object, proxied object or class-based are the 4 ways to create enums in JavaScript. values(NubDirection)[nextIndex]; // Get the typed enum from the string value: const nextIndex: NubDirection = Object. Apr 29, 2023 · Enums, short for “enumerations”, are a programming language feature that allows developers to define a set of named constants. You should be using string literal types Jul 7, 2019 · 從上方的 JavaScript 中，可以看到 Enum 編譯過後會變成 Key 和 Value 互相對應的 Object ，也就是說不管是用 Key 還是Value 都可以取出對應的值， Sep 10, 2016 · // Get the the enum string value: const nextStringedEnum: string = Object. log(this); } } Or: class Jul 20, 2025 · The Object. The simplest way to do that is to generate an object that contains both: The numeric keys with Mar 25, 2025 · Learn how to use TypeScript Enums with this beginner-to-advanced tutorial. My question is how would you go about mapping an enumerator value to a string value in Javascript? I'm thinking the second way is the most sensible, but would like the enumerator to be positive for successes and negative for fails. Learn how to implement enums in JavaScript using objects, Symbols, and TypeScript. Can an enum be used as a key type instead of only number or string? Currently it seems like the only possible declaration is { [key: number]: any }, where key can be of type number or string. Mar 14, 2016 · Fowler fan, senior full-stack developer Enums in javascript (with Lodash) PDF Javascript doesn’t natively support enums and it’s not included in the ECMAScript specification. See my blog post for more details: Enums in JavaScript. long. Learn when to use each approach with practical examples to optimize your TypeScript code. I also like the idea of the first containing the strings and values in the object structure. This can be done by using an Object as the enum value containing the properties. Sep 2, 2022 · An enum generally has a string value and a numeric value that relates to that string value. However, since Enum is a pattern, it can be replicated via some techniques and features of native JavaScript. You can do this by declaring it before the loop: Using an enum is simple: just access any member as a property off of the enum itself, and declare types using the name of the enum. Apr 10, 2025 · So Enum Mapping is the ability to map the typed enums into an array, or the ability to use the assigned values of enum. Each method is explained with simple examples to Jun 9, 2017 · Whilst using Symbol as the enum value works fine for simple use cases, it can be handy to give properties to enums. Jul 19, 2025 · WeakMap object A WeakMap is a collection of key/value pairs whose keys must be objects or non-registered symbols, with values of any arbitrary JavaScript type, and which does not create strong references to its keys. I use Object. keys() static method returns an array of a given object's own enumerable string-keyed property names. keys and e[dynamicKey]. These constants are essentially unchangeable variables that represent a fixed collection of possible values. Syntax: const Enumobj = { key: value, }; Example: const Enumobj = { first: <First />, second: <Second /> }; Step 2: Now, we will make a javascript function that takes a state as a parameter and return Learn how to obtain string values from enums in JavaScript without utilizing the toString () method, with examples and best practices. keys()" and "Object. Jun 17, 2022 · In TypeScript, "enums" are real objects that exist at the runtime. values () We can use the Object. Example: In this example, We define a TypeScript enum Color with three color options. Any ideas? Thanks Jul 9, 2024 · Enums are a feature in TypeScript that help organize collections of related values. Aug 19, 2022 · In general, enums are a data type that can hold a finite number of defined values. Enums are one of the few features TypeScript has which is not a type-level extension of JavaScript. Enums are a feature added to JavaScript through TypeScript which makes it easier to handle named sets of constants. In this article, we are going to explore various approaches to converting a JavaScript enum to a string representation. e. We used keyof typeof to cast the values in the array as enum members. Corresponding virtual keycodes for common platforms are included where available. I need to get the corresponding value well, in your title you say you need to get the key for the value passed, in your description you say you need the value, for the key passed. Example: The below example will explain how you can convert a string into an enum using custom mapping. Improve your code readability and type safety using this powerful TypeScript feature. Jan 3, 2017 · Javascript enum with multiple values and value types Asked 8 years, 10 months ago Modified 8 years, 10 months ago Viewed 18k times Aug 28, 2022 · An Enumeration solves this problem by creating an uneditable list of values where each value has a String name as the key. We also use Object. In this comprehensive guide, we’ll unpack enums in JavaScript – what they are, why they matter, how to define and use them, and when to rely […] Jul 23, 2025 · Rendering Component using enum: Step 1: In javascript, we can create an object with key-value pairs and use it as an enum. Syntax : Example : Let's use a Javascript object to implement an enum for the directions such as north, east, west, and Aug 29, 2024 · Object-Based Enums: You can define an object with key-value pairs, where keys represent enum members and values represent their corresponding values. assign() two enums, it will create a new, merged value (object), but not a new named type. Let’s take a look at two options of applying enumerator in JavaScript. Apr 27, 2022 · i have an enum and in other component i use in this enum but i need the key and i dont know how to get it the enum export const AlgorithmType = { Bfs: 0, Dfs: 1, Kruskal: 2, Dijks If you are using string enums, then combine it with ts-string-visitor (npm, github) for even more generic type-safe compiler checks to guarantee that you handle all possible enum values in your map function: (update: new version of ts-enum-util now includes functionality of ts-string-visitor, and it works on numeric enums now too!) Sep 12, 2018 · Well, it's not really an "enum"; it's an object with string-valued properties. Using enums as keys in a JavaScript map can help you organize and manage constant values effectively. "MoveId") and return its integer value of 4. Aug 5, 2025 · An enum, short for "enumerated type", is a special data type in programming languages that allows us to define a set of named constants. Jul 18, 2024 · Mapping enum or tuple values to objects is a common practice in TypeScript for handling different data representations. By defining a finite set of values, the enum is more type safe than constant literal variables like String or int. Learn how to extract enum keys and values with practical code examples and best practices. an Enum is an enumerated list of allowed values, and traditionally doesn't have key/value pairs. The Object. Enums, or enumerations, are a way to define a set of named constants. In that case the number of enum members is somewhere in between the half and full length and can be exactly calculated with Object. This is useful when the value is not important. Thanks in anticipation. keys () to get an array of the enum's keys (like MONDAY, TUESDAY), and we print them out. It is important to check if the property is a key of the enum to avoid iterating over any prototype properties. Both use string values for their identifiers. However, enums in TypeScript can be either numeric or string-based, and this distinction impacts how we can iterate over them effectively. You can do this by declaring it before the loop: Jun 3, 2025 · Compare TypeScript enums and const objects side-by-side. For Vanilla Js it should be like below: Jan 24, 2018 · I would like a simple way to get a list of keys from an enumerator, I tried Object. Master enum types, use cases, and best practices with examples. TypeScript supports numeric enums and string enums. keys () method to get the names of each key of the enum and the Object. g. That is, an object's presence as a key in a WeakMap does not prevent the object from being garbage collected. However, Enums are not native to JavaScript, so they are usually implemented using objects or frozen arrays. The second way seems to work though. I was trying to extract strings with using an enum such as: var INGREDIENT = { COFFEE: "coffee"} and then later wanted to have a cost scale for the ingredients var COST = { coffee: 1 } but i want Jun 21, 2023 · You learned some basics about Enums in Typescript and learned how to get keys and values by using the Object. So how could I do this? Apr 30, 2024 · Explore the power of Enums in JavaScript for clearer, more maintainable code. It works with any enum type and is both efficient and accurate. They store a named set of constants. Ultimate requirement is to get an enum which is equivalent to FloorTypeEnum - LegacyFloorTypeEnum. We'll get a kebab-case value from our API but want to use a camelCase value in TS: Jun 8, 2020 · This is how enum works in typescript. values return an array with same values (regardless the type). Jul 8, 2021 · Explains how to get value by key, get key by value, and use an enum as an object key. The values in enums are not mutable. May 5, 2017 · The type in MESSAGE_TYPE syntax might be better if you can guarantee that the key and the value of the enum will be the same since it's a key lookup rather than a value lookup. Each contants can be accessed by its name. So, if you Object. Then I was stuck for a bit on the fact that Object. 106 A tricky bit is that TypeScript will 'double' map the enum in the emitted object, so it can be accessed both by key and value. Nov 8, 2020 · I want to use the key and value of the enum and return to frontend. Jun 5, 2025 · Learn how to use TypeScript enums as object keys with clear examples. A relevant example in the Google JavaScript style guide you linked to is: some. The only wart is that you need some key in the complex object (I'm using value here) to hold the Mar 25, 2017 · The problem is that TypeScript enum s are actually "named numeric constants. Feb 26, 2024 · The value of the Small key is 0, Medium = 1 and Large = 2. For example 'AK' . values() method. Accessing these values efficiently is crucial for clean, maintainable code. Learn how to define, use, and leverage Enums effectively in your projects. I can write a switch transforming the value, however is there a more efficient (briefer) way of casting an int to enum? One Nov 1, 2023 · A an array of additional values, passed to the converted function, left as an array of unknown, since the interface does not really care about them; V the type for the values, the mapped object keys will be pointing, this will provide the flexibility, we do not impose any restrictions; T this is the enum type, which will be passed. Jan 10, 2017 · I have defined the following enum in TypeScript: enum Color{ Red, Green } Now in my function I receive color as a string. Objects as Enums One way to achieve the use of enums in JS is to use objects. Aug 5, 2025 · Examples of Iterating over Enum Values in TypeScript Using a forin loop In this approach, we are using a forin loop to iterate over the keys of the enum and access the corresponding values. values() methods. Alerting the name is already possible: Sep 6, 2018 · Instead of creating an Interface or an Enum you can use a class with private constructor. Fruit = { APPLE: 'a', BANANA: 'b' }; Aug 8, 2024 · Using custom mapping In this approach, we will define an enum initialized with string values and then map through each item to compare them with a string and return the matching enum value to convert the string into an enum. May 29, 2017 · How to get a random item from an enumeration? enum Colors { Red, Green, Blue } function getRandomColor(): Color { // return a random Color (Red, Green, Blue) here } Jun 11, 2023 · In TypeScript, you can convert a string to an enum value by using the enum and valueOf() method. These each have a different way to check them. A JavaScript enum helps you define a fixed set of named values that make code easier to read, maintain, and debug. keys and Object. The first way tells you how to access the enum value with the key which is not what i asked. Jan 18, 2024 · Enums in TypeScript are a feature that is not only a type-level extension to JavaScript. May 27, 2014 · Now i need to get the enumValues. Read now! Feb 13, 2018 · Like @k0pernikus said, TypeScript enums is compiled in a way it allows to lookup to an index from a value. Keep your code clean, consistent, and typo-proof. I want to guarantee this through the type system so that Typescript enums are a little annoying because they have two sides - the atom used to name a value, and the actual value. By creating a type with the same name as the const, you can have the same exhaustiveness checks that normal enums have. Apr 28, 2025 · Key values for keyboard events The tables below list the standard values for the KeyboardEvent. JAVASCRIPT JavaScript Enum: Syntax, Usage, and Examples JavaScript doesn't have built-in support for enums like some other programming languages (such as TypeScript or Java), but you can still create similar structures using objects. The object can have key-value pairs where the key can be treated as the enum value, and the matter can be anything. You also learned how to transform an enum into an array of objects. The colorArrayManual is then generated by iterating through the enum, extracting keys and values to form an array of objects representing each color with its label and value. Your code uses dynamic programming with Object. Step-by-step guide with real-world USA examples and best practices. Mar 7, 2022 · There’s one small problem, though — Enums are not supported in JavaScript natively. As in, there should be exactly one value in the lookup for every key of the enum. keyCode values. validate("typesColumn", [ types. Given those limitations, the enum value alone is not suitable for Jan 20, 2024 · Typescript enums are of three types: Numeric enum: All enum members have numeric values. For dynamic codes, the type any is convenient. I have tried the following code: var green= "Green"; var color : Colo Keep in mind that string enum members do not get a reverse mapping generated at all. An enum is a set of named constants. WHITE, types. Feb 26, 2024 · Note that for numeric enums, the output contains the keys and values. Enums can be used to make code more readable and self-documenting by replacing magic numbers or strings with meaningful names. TypeScript, a superset of JavaScript, introduces its own Jan 12, 2025 · Enums help in reducing errors by ensuring that only valid values are used in a specific context. In JavaScript, Enumerations or Enums are used to represent a fixed set of named values. These constants represent a fixed set of values that a variable can take on. Nov 9, 2023 · Enums or enumerations are a powerful code structuring tool used by developers across programming languages. Nov 13, 2025 · The Java enum type provides a language-supported way to create and use constant values. enum CompassDirection { North, East, South, West, } Feb 18, 2018 · I needed to be able to treat the new value set the same way as the original enum, i. This article explores various methods to map enumerations (enums) and tuples to objects, providing examples to illustrate each method. Jul 26, 2023 · Reverse Mapping: TypeScript enums support reverse mapping, allowing you to get the string name (key) of an enum member based on its value. BLACK ]); Now is there a way I can just simple convert the values in types to an array so that I don't have to list all of the values of the enum? Jul 30, 2025 · Learn how to get enum keys by value in TypeScript with easy, practical methods. values() methods return an array containing both the enum's keys and values, so if you need just one or the other, you need to filter out the unnecessary values. gsjh gcupa oitu painuy qqpg xyvzg qyj haahtq dusydqc hcqiwal xungnr nvxhv liv wltc wldn