javascript检测页面是否缩放的小例子_javascript技巧

/*
* zoomCheck
*/
jQuery(function($){
var dCheck = $("#zoomCheck");
if(dCheck.size() != 0){
return;
}
dCheck = $("").attr('id',"zoomCheck").css({
position :'fixed',
left : '5px'
}).hide().appendTo('body');
var time;
time = setInterval(function(){
dCheck.show();
var left = dCheck.position().left;
dCheck.hide();
if(left != 5){
clearInterval(time);
alert('你的页面处于缩放状态，页面显示会有问题，请设置为正常状态。windows:ctrl+0 mac:command+0');
}
},2000);
});