Question

做手机 Web 开发做浏览器兼容用到了，所以在网上找了些汇总下。

alert($(window).height()); //浏览器当前窗口可视区域高度 
alert($(document).height()); //浏览器当前窗口文档的高度 
alert($(document.body).height());//浏览器当前窗口文档 body 的高度 
alert($(document.body).outerHeight(true));//浏览器当前窗口文档 body 的总高度 包括 border padding margin 
alert($(window).width()); //浏览器当前窗口可视区域宽度 
alert($(document).width());//浏览器当前窗口文档对象宽度 
alert($(document.body).width());//浏览器当前窗口文档 body 的高度 
alert($(document.body).outerWidth(true));//浏览器当前窗口文档 body 的总宽度 包括 border padding margin 

// 获取页面的高度、宽度
function getPageSize() {
  var xScroll, yScroll;
  if (window.innerHeight && window.scrollMaxY) {
    xScroll = window.innerWidth + window.scrollMaxX;
    yScroll = window.innerHeight + window.scrollMaxY;
  } else {
    if (document.body.scrollHeight > document.body.offsetHeight) { // all but Explorer Mac  
      xScroll = document.body.scrollWidth;
      yScroll = document.body.scrollHeight;
    } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari  
      xScroll = document.body.offsetWidth;
      yScroll = document.body.offsetHeight;
    }
  }
  var windowWidth, windowHeight;
  if (self.innerHeight) { // all except Explorer  
    if (document.documentElement.clientWidth) {
      windowWidth = document.documentElement.clientWidth;
    } else {
      windowWidth = self.innerWidth;
    }
    windowHeight = self.innerHeight;
  } else {
    if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode  
      windowWidth = document.documentElement.clientWidth;
      windowHeight = document.documentElement.clientHeight;
    } else {
      if (document.body) { // other Explorers  
        windowWidth = document.body.clientWidth;
        windowHeight = document.body.clientHeight;
      }
    }
  }     
  // for small pages with total height less then height of the viewport  
  if (yScroll < windowHeight) {
    pageHeight = windowHeight;
  } else {
    pageHeight = yScroll;
  }  
  // for small pages with total width less then width of the viewport  
  if (xScroll < windowWidth) {
    pageWidth = xScroll;
  } else {
    pageWidth = windowWidth;
  }
  arrayPageSize = new Array(pageWidth, pageHeight, windowWidth, windowHeight);
  return arrayPageSize;
}

// 滚动条
document.body.scrollTop;
$(document).scrollTop();