28.4. Functions in TypeScript

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Wed Aug 31 2022 20:53:42 GMT+0000 (Coordinated Universal Time)

     function myFunction(a: number, b?:number): number {
             if (typeof b !== 'undefined'){
                     return a+b+5;
                  } else {
                          return a+5;
                  }
          }

console.log(myFunction(1,2));
console.log(myFunction(1));
console.log(myFunction(3,5));
console.log(myFunction(3));
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6
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https://education.launchcode.org/intro-to-professional-web-dev/chapters/typescript/functions.html

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@cruz

28.2. Declaring and Using Variables 28.3. Arrays in TypeScript 28.4. Functions in TypeScript 28.5.1. Classes 28.6. Compiling TypeScript

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28.4. Functions in TypeScript

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