var myImage = (function() {
var imgNode = document.createElement('img');
document.body.appendChild(imgNode);
var img = new Image();
img.onload = function() {
imgNode.src = img.src;
}
return {
setSrc: function(src) {
imgNode.src = 'images/ajaxing.gif';
img.src = src;
}
}
})();
myImage.setSrc('http://tse4.mm.bing.net/th?id=OIP.puFzgpLnlMDZoFso0eSbIQDIEs&pid=15.1');
虚拟代理实现
var myImage = (function() {
var imgNode = document.createElement('img');
document.body.appendChild(imgNode);
return {
setSrc: function(src) {
imgNode.src = src;
}
}
})();
var proxyImage = (function() {
var img = new Image();
img.onload = function() {
myImage.setSrc(this.src);
}
return {
setSrc: function(src) {
myImage.setSrc('images/ajaxing.gif');
img.src = src;
}
}
})();
proxyImage.setSrc('http://tse4.mm.bing.net/th?id=OIP.puFzgpLnlMDZoFso0eSbIQDIEs&pid=15.1');
