CODEWITHSUNDEEP
javascriptfunctionprototype
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I am a registered user

Reputation: 519

Make special function prototypes in javascript


I was thinking about this... I know that you can do Object.prototype.example() but I was wondering how to do something like this: ExampleFunction().prototype.exampleHandler. Sort of like how this works:document.querySelector().id I think that it is possible. If you have any questions about it, please comment!

Thanks for helping out!

Upvotes: 0

Views: 39

Answers (1)

adeneo
adeneo

Reputation: 318342

To make something work like document.querySelector().id you just need to add a property to a function, and as functions are objects it's easy, or return an object with those properties when the function is called, like this

var example = function(what) {
  return {
    id : what
  }
}

var foo = example('foo').id; // TADA

example.bar = function() {
    return {
      id : 'not foo'
    }
}

var bar = example.bar().id;

document.body.innerHTML = foo + ' - ' + bar;

And that's how chaining works in it's simplest form.

Upvotes: 1

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