标签:地址 class dev navig var art ica pixel get
前几天在做项目的时候遇到浏览器缩放比例不为100%时,出来的页面不正常,于是找到了方法获取其比例来通知用户
function detectZoom (){ var ratio = 0, screen = window.screen, ua = navigator.userAgent.toLowerCase(); if (window.devicePixelRatio !== undefined) { ratio = window.devicePixelRatio; } else if (~ua.indexOf(‘msie‘)) { if (screen.deviceXDPI && screen.logicalXDPI) { ratio = screen.deviceXDPI / screen.logicalXDPI; } } else if (window.outerWidth !== undefined && window.innerWidth !== undefined) { ratio = window.outerWidth / window.innerWidth; } if (ratio){ ratio = Math.round(ratio * 100); } return ratio; };
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标签:地址 class dev navig var art ica pixel get
原文地址:https://www.cnblogs.com/xiaoyaoxingchen/p/9057387.html