Invoke method (that takes string param) on string via chaining

Question

Can I do something like this?

var mystring = "http%3A%2F%2Fstackoverflow.com%2F";

var mydecodedstring = mystring.apply(decodeURIComponent);

I know I can do this

var mydecodedstring = decodeURIComponent(mystring);

But I'd like to chain this if possible for syntactic purposes. Just curious if it's possible. My goal is:

mystring.?????

If you're looking to create a custom `String.method`, take a look at [String.prototype](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/prototype). There is a good article about Method Chaining and using prototype [here](https://schier.co/blog/2013/11/14/method-chaining-in-javascript.html). — Tyler Roper, Apr 13 '17 at 17:03
Is adding a String method the only way to do this? There's not an existing method that can accomplish this? — Brenton Klassen, Apr 13 '17 at 17:08
Yes, adding a method to the prototype method is the only way to do this (if you don't want to write something like `$(mystring).apply(decodeURIComponent)`), and that is [something you really should not do](http://stackoverflow.com/q/14034180/1048572). — Bergi, Apr 13 '17 at 17:11

score 0 · Answer 1 · answered Apr 13 '17 at 17:09

maybe you want to add a new method to String object?

 String.prototype.apply= function(entry){
     return decodeURIComponent(entry);
    }
    var mystring = "http%3A%2F%2Fstackoverflow.com%2F";

    var mydecodedstring = mystring.apply(decodeURIComponent);

score 0 · Accepted Answer · answered Apr 13 '17 at 17:10

Your should see this to see how apply works. You could do something like:

var mystring = "http%3A%2F%2Fstackoverflow.com%2F";

var mydecodedstring = decodeURIComponent.apply(null, mystring);

Clearly, apply will not provide what you are looking for.

You could define your own function on the String prototype for decoding or define it only on your object.

Invoke method (that takes string param) on string via chaining

2 Answers2