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Typescript generics with function

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Alert Albatross answered on December 7, 2020 Popularity 10/10 Helpfulness 1/10

answer Typescript generics with function

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Typescript generics with function

Comment

function firstElement<Type>(arr: Type[]): Type | undefined {
  return arr[0];
}

Popularity 10/10 Helpfulness 1/10 Language typescript

Source: www.typescriptlang.org

Tags: function typescript typescript-generics

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Contributed on Dec 31 2022

Alert Albatross

0 Answers Avg Quality 2/10

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generic in typescript

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/*
What are Generics?
Generics have been a major feature of strongly typed languages 
like Java and C#. In TypeScript, they allow the types of components 
and functions to be "SPECIFIED LATER" which allows them to be used 
in creating reusable components that can apply to different use cases, 

for example:
*/

function returnInput <Type>(arg: Type): Type {
  return arg;
};
const returnInputStr = returnInput<string>('Foo Bar');
const returnInputNum = returnInput<number>(5);

console.log(returnInputStr); // Foo Bar
console.log(returnInputNum); // 5

Popularity 10/10 Helpfulness 3/10 Language typescript

Source: blog.openreplay.com

Tags: typescript t

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Contributed on Jun 13 2022

yusuf_fazeri

0 Answers Avg Quality 2/10

typescript generic function

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function firstElement<Type>(arr: Type[]): Type {
  return arr[0];
}
// s is of type 'string'
const s = firstElement(["a", "b", "c"]);
// n is of type 'number'
const n = firstElement([1, 2, 3]);

Popularity 10/10 Helpfulness 3/10 Language typescript

Source: Grepper

Tags: generic-function gene

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Contributed on Apr 25 2021

VasteMonde

0 Answers Avg Quality 2/10

Typescript method generic type

Comment

function identity<Type>(arg: Type): Type {
  return arg;
}
 
let myIdentity: <Input>(arg: Input) => Input = identity;

Popularity 10/10 Helpfulness 2/10 Language typescript

Source: www.typescriptlang.org

Tags: typescript t

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Contributed on Nov 21 2022

Pleasant Pigeon

0 Answers Avg Quality 2/10

Typescript Basic Generics

Comment

   function identity<T>(arg: T): T {
      return arg;
    }


let fun = identity<string>("hello");
console.log(fun);   

/*T is shorthand for Type, meaning "you can specify the data type later"*/

Popularity 10/10 Helpfulness 2/10 Language typescript

Source: Grepper

Tags: basic basi

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Contributed on Jul 19 2022

Javasper

0 Answers Avg Quality 2/10

typescript generic type

Comment

function identity<T>(arg: T): T {
  return arg;
}Try

Popularity 10/10 Helpfulness 2/10 Language typescript

Source: www.typescriptlang.org

Tags: typescript t

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Contributed on Dec 07 2020

Restu Wahyu Saputra

0 Answers Avg Quality 2/10

generic typescript

Comment

class Greeter<T> {
  greeting: T
  constructor(message: T) {
    this.greeting = message
  }
}

let greeter = new Greeter<string>('Hello, world')

Popularity 10/10 Helpfulness 2/10 Language typescript

Source: devhints.io

Tags: typescript t

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Contributed on Jan 11 2022

Glorious Goshawk

0 Answers Avg Quality 2/10

typescript generic

Comment

type staffsKeys = {
     name: string, 
     salary: number
}

function getProperty<T extends staffsKeys, K extends keyof staffsKeys>(obj: T, key: K): T[K] {
return obj[key];
}

Popularity 9/10 Helpfulness 1/10 Language typescript

Source: Grepper

Tags: keyof typescript

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Contributed on Apr 02 2024

Zviadx

0 Answers Avg Quality 2/10

generic function typescript

Comment

-2

const valueWrapper = <T>(value: T): T[] => {
  return [value];
};

console.log(valueWrapper<number>(10));

Popularity 10/10 Helpfulness 1/10 Language typescript

Source: Grepper

Tags: generic-function gene

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Contributed on Jul 15 2022

Crazy Cicada

0 Answers Avg Quality 2/10

Typescript generics with function

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Typescript generics with function

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generic in typescript

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Typescript method generic type

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