Vector3.prototype.isVector3 = true is being set inside the constructor of Vector3 class.

[0xF48]

Description

why is being called every time a Vector3 object is created? shouldn't this be placed outside of the class?

Reproduction steps

Vector3 class prototype in https://github.com/mrdoob/three.js/blob/dev/src/math/Vector3.js#L8

Code

import * as MathUtils from './MathUtils.js';
import { Quaternion } from './Quaternion.js';

class Vector3 {

constructor( x = 0, y = 0, z = 0 ) {

	Vector3.prototype.isVector3 = true;

	this.x = x;
	this.y = y;
	this.z = z;

}

Live example

no example

Screenshots

No response

Version

r163

Device

No response

Browser

No response

OS

No response

[Mugen87]

This is related to tree-shaking. I suggest you study the related issues and PRs in this context. E.g. #24047, #24167, #24219.

[Mugen87]

Please use the forum if you have more questions about this topic.