Discussion on: 5 Ways to Write Functions in JavaScript

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Replies for: There is also Function constructor: var sum = new Function('a,b', 'return a + b'); Enter fullscreen mode Exit fullscreen mode ...

Great Jakub.

I wanted to add this one in the article, but it's not really widely used.

You're right, but to be complete you need to know about it.

Also, you missed named function expressions:

const mul = function recur(a, b){
    if (a === 0) {
       return b;
    }
    return recur(a -1, b + 1);
};

and immedietly invoked function expressions:

(function() {
   const x = 10;
   console.log({x});
})();