javascript - How to read the property values of the viewport meta tag? -

javascript - How to read the property values of the viewport meta tag? -

i have tried:

var viewportelement = document.queryselector('meta[name="viewport"]'), viewport = {}; if (viewportelement) { viewportelement.content.split(',').foreach(function (property) { property = property.split('='); viewport[property[0]] = property[1]; }); } console.log(viewport);

it give expected result:

object {width: "320", user-scalable: "no"}

however, not sure if reading values of these properties tag attribute value right approach. expecting these properties hiding somewhere under window?

javascript meta