1. Home
  2. TypeScript

Typescript default parameter

Code examples

9
0

typescript default parameter 

// Default Parameters
sayHello(hello: string = 'hello') { 
    console.log(hello); 
}

sayHello(); // Prints 'hello'

sayHello('world'); // Prints 'world'
3
0

typescript optional parameters 

// Default Parameters
sayHello(hello: string = 'hello') {
  console.log(hello);
}

sayHello(); // Prints 'hello'

sayHello('world'); // Prints 'world'
2
0

typescript default parameter 

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

sayName({ first: 'Bob' });

Similar pages

Similar pages with examples

typescript default parameter

In other languages

This page is in other languages

Русский
..................................................................................................................
Ссылка
Italiano
..................................................................................................................
Link
Polski
..................................................................................................................
Link
Română
..................................................................................................................
Legătură
한국어
..................................................................................................................
링크
हिन्दी
..................................................................................................................
लिंक
Français
..................................................................................................................
Lien
Türk
..................................................................................................................
Atıf
Česk
..................................................................................................................
Odka
Português
..................................................................................................................
Referênci
ไทย
..................................................................................................................
เชื่อมโยง
中文
..................................................................................................................
链接
Español
..................................................................................................................
Referencia
Slovenský
..................................................................................................................
Odkaz
Балгарскі
..................................................................................................................
Спасылка
Íslensk
..................................................................................................................
Link

Popular in the category

Popular pages with examples in the category

typescript null and undefined check
ts enum
get function return type typescript
delete array typescript
get key of enum typescript
omit in typescript
how to create empty object typescript
typescript type definition
Testing Objects for Properties
deep partial typescript
spread operator in ts
typerscript online compiler
typescript class type t
make an interface iterator typescript
typescript one of array
install typescript homebrew