🔰integers

JS ⟩ value ⟩ primitive ⟩ number ⟩ integers

x | 0        // x -> integer

💈範例

const pixelRatio = window.devicePixelRatio;
const width  = canvas.clientWidth  * pixelRatio | 0;
const height = canvas.clientHeight * pixelRatio | 0;

👉 three.js