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What is TypeScript's as keyword used for?

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TAKUNDA answered on December 29, 2023 Popularity 3/10 Helpfulness 1/10

answer What is TypeScript's as keyword used for?

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What is TypeScript's as keyword used for?

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The as keyword is used for type assertion, which tells 
TypeScript to treat a value as a specific type.


code##
let value: any = "Hello, world!";
let length: number = (value as string).length;

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Contributed on Nov 10 2024

TAKUNDA

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typescript as keyword

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interface Person {
  name: string;
  age: number;
}

const data: any = { name: 'John', age: 25, city: 'New York' };

// Using type assertion to tell TypeScript that data is a Person
const personData = data as Person;

// Now you can access properties as if data were a Person
console.log(personData.name); // 'John'
console.log(personData.age);  // 25

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Tags: typescript as-keyword a

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Contributed on Dec 29 2023

Tender Toad

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r/nonutnovember

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good luck fellas

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Contributed on Nov 10 2024

Mark Black

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What is TypeScript's as keyword used for?

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What is TypeScript's as keyword used for?

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