typescript default parameter

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Juan Diego
02 Mar 2020
1// Default Parameters
2sayHello(hello: string = 'hello') { 
3    console.log(hello); 
4}
5
6sayHello(); // Prints 'hello'
7
8sayHello('world'); // Prints 'world'
Constanza
16 Feb 2019
1// Default Parameters
2sayHello(hello: string = 'hello') {
3  console.log(hello);
4}
5
6sayHello(); // Prints 'hello'
7
8sayHello('world'); // Prints 'world'
Sergio
12 Mar 2017
1function sayName({ first, last = 'Smith' }: {first: string; last?: string }): void {
2  const name = first + ' ' + last;
3  console.log(name);
4}
5
6sayName({ first: 'Bob' });
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