JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//cdn.rawgit.com/mrdoob/three.js/master/build/three.min.js"></script>

CSS

body {
	  margin: 0;
}

JavaScript

var geoemtry = new THREE.BoxGeometry();
var material = new THREE.MeshBasicMaterial();
var cube = new THREE.Mesh( geoemtry, material );

console.log( cube.matrix.elements ); // indentity matrix

cube.scale.set(2,2,2);
cube.translateX(4);

console.log( cube.matrix.elements ); // still indentity matrix

cube.updateMatrix(); // now we compute cube.matrix based on position, rotation

console.log( cube.matrix.elements );