Calling static method from constructor es6

Question

When I am trying to call a static method from constructor in javascript it says the method doesn't exist.

class TestClass {

    constructor(){
        this.staticMethod();
    }

    static staticMethod() {

    }
}

This works fine if i try to call a normal method from constructor. If static methods belongs to class instead of instance why it's not allowing them to call from constructor?

`this` refers to an instance, you are using static which is not tied to an instance, ... — takendarkk, May 03 '16 at 11:39

score 36 · Accepted Answer · answered May 03 '16 at 12:54

36

this.constructor.staticMethod()

can be used to avoid referring to the class directly (particularly useful for class inheritance and pasted code).

answered May 03 '16 at 12:54

Estus Flask

206,104
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1

This was precisely what I needed. – geoyws Mar 28 '17 at 09:53
I know I'm late to this party but is there a difference between `this.constructor.staticMethod()` and `TestClass.staticMethod()`? – Jonathon Nordquist Sep 06 '19 at 21:47
1

@JonathonNordquist There's no difference, as long as it's called inside TestClass, but there's a difference for inherited classes. – Estus Flask Sep 07 '19 at 06:04
I was searching for this exactly. The original poster of the question was only trying to call a static method in a normal way but I needed something that is polymorphic like in Java, when you use the object reference to call a static method instead of the class name and this is the exact answer I needed. Upvoted! – Ilja KO May 09 '22 at 01:56

score 15 · Answer 2 · answered May 03 '16 at 11:25

15

You have to call it like this:

TestClass.staticMethod()

answered May 03 '16 at 11:25

dlopez

969
5
17

How can i be so dump.. Thanks for the answer. – Ashok May 03 '16 at 11:28
works, but the day you want to rename it's not all that convenient – Fabien Snauwaert Jun 02 '22 at 11:38

Calling static method from constructor es6

2 Answers2

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