typescript set default parameter value

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answer typescript set default parameter value

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typescript set default parameter value

Comment

function greet(name: string = "Guest") {
  console.log(`Hello, ${name}!`);
}

// Calling the function without providing an argument for 'name'
greet(); // Output: "Hello, Guest!"

// Calling the function with an argument for 'name'
greet("John"); // Output: "Hello, John!"

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Contributed on Sep 12 2023

YOU.com

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typescript default value for type

Comment

type Person = {
  name?: string,
  age?: number,
  isActive?: boolean
};

const defaultPerson: Person = {
  name: "John Doe",
  age: 25,
  isActive: true
};

function getPersonDetails(person: Person = defaultPerson) {
  // Function logic here
}

// Usage
const person1: Person = {
  name: "Alice",
  isActive: false
};
getPersonDetails(person1); // Person object with default values for missing properties will be assigned

const person2: Person = {};
getPersonDetails(person2); // Person object with default values for all properties will be assigned

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Contributed on Sep 11 2023

YOU.com

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typescript default parameter

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function sayName({ first, last = 'Smith' }: {first: string; last?: string }): void {
  const name = first + ' ' + last;
  console.log(name);
}

sayName({ first: 'Bob' });

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Source: stackoverflow.com

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Contributed on Aug 27 2020

Good Gnu

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typescript optional parameters with default value

Comment

function greet(name: string, greeting: string = "Hello") {
  console.log(`${greeting}, ${name}!`);
}

greet("John");  // Output: Hello, John!
greet("Sarah", "Hi");  // Output: Hi, Sarah!

Popularity 9/10 Helpfulness 1/10 Language typescript

Source: Grepper

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Contributed on Sep 12 2023

YOU.com

0 Answers Avg Quality 2/10

typescript set default parameter value

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