Note: This feature is available in Web Workers.
The DOMPointReadOnly method toJSON() returns an object giving the JSON form of the point object.
toJSON()None.
A new object whose properties are set to the values in the DOMPoint or DOMPointReadOnly on which the method was called.
This example creates a DOMPoint object representing the top-left corner of the current window, in screen coordinates, then converts that to JSON.
const topLeft = new DOMPoint(window.screenX, window.screenY);
const pointJSON = topLeft.toJSON();