How to call function after ".", javascript [duplicate]

Question

I have this sample function, and i want to call it in this format :

const myfunc = (string) => {
   return string.length
}

console.log("check_length".myfunc())

How can i do that? Thanks for answers in advance!

Nina Scholz · Accepted Answer · 2019-07-01 15:46:21Z

4

The only way is to mutate the prototype of String with a classic function for accessing this.

String.prototype.myfunc = function () {
   return this.length;
};

console.log("check_length".myfunc());

answered Jul 1, 2019 at 15:46

Nina Scholz

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1 Comment

Correct. Also, please, never ever actually do that.