Access to static properties via this.constructor in typescript

but in typescript this.constructor.prop causes error "TS2339: Property 'prop' does not exist on type 'Function'".

Typescript does not infer the type of constructor to be anything beyond Function (after all ... the constructor might be a sub class).

So use an assertion:

class SomeClass {    static prop = 123;    method() {        (this.constructor as typeof SomeClass).prop;    }}

More on assertions

Microsoft programmer talking this but there is not a good way to type constructor. You can use this tip first.

class SomeClass {    /**     * @see https://github.com/Microsoft/TypeScript/issues/3841#issuecomment-337560146     */    ['constructor']: typeof SomeClass    static prop = 123    method() {        this.constructor.prop // number    }}

Usually the simple way is:

class SomeClass {    static prop = 123    method() {        console.log(SomeClass.prop)  //> 123    }}

Note that if you use this, subclasses of SomeClass will access the SomeClass.prop directly rather than SomeSubClass.prop. Use basarat's method if you want subclasses to access their own static properties of the same name.