typescript function call type code example

Example 1: typescript function type

// define your parameter's type inside the parenthesis
// define your return type after the parenthesis

function sayHello(name: string): string  {
  console.log(`Hello, ${name}`!);
}

sayHello('Bob'); // Hello, Bob!

Example 2: html call typescript function

myFunction(param1: string) {
    console.log('Everything is ok...');
    return param1 + 1;
}

<button (click)='myFunction("parameter")'>Button Click</button>