Posted on 12/16/2019

I prefer function expressions!

Functions are an important building block of JavaScript and we define them by declaration or expression!

Function declaration

So, one thing to note is that function declaration is hoisted. What this means is that you can still call a function in this syntax even before defining it.

     // call before defining
     Hello();

     // function declaration
     function Hello() {
        console.log(`Hello`);
     }

     // call after defining
     Hello();

Function expression

Hoisting doesn't work with function expressions. I love this! This helps enforce a good coding practice. It's handy to declare/define things first before using them. In. addition, this allows you to have a good logical flow in your code!

I love using arrow functions in this case.

    // define the function first
    const Hello = () => {
     console.log(`Hello`);
    };

    // call after defining
    Hello();

That's it! Happy coding