javascript闭包的解决方法
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script type="text/javascript">
/*以下是从Prototype框架中截取的代码---------------------------------------*/
var $A = function(iterable) {
if (!iterable) return [];
if (iterable.toArray) {
return iterable.toArray();
} else {
var results = [];
for (var i = 0, length = iterable.length; i < length; i++)
results.push(iterable[i]);
return results;
}
}
//闭包方法(第一个参数为绑定方法所属的对象，后面参数为绑定方法的参数)。
Function.prototype.bind = function() {
var __method = this, args = $A(arguments), object = args.shift();
return function() {
return __method.apply(object, args.concat($A(arguments)));
}
}
/*-------------------------------------------------------------------*/
function Node(id, name, cn) {
this.id = id;
this.name = name;
this.cn = cn;
}
var nodes = new Array();
nodes[0] = new Node(1, "node1", "节点1");
nodes[1] = new Node(2, "node2", "节点2");
var nodeConfig = {};
nodeConfig.ticks = 4 * 1000; //刷新频率
nodeConfig.msg = "运行中";
function showStatus(node) {
alert(node.name + ":" + nodeConfig.msg);
}
function start() {
var len = nodes.length;
for (var i = 0; i < len; i++) {
//闭包解决。
var bindFun = showStatus.bind(null, nodes[i]);
setInterval(bindFun, nodeConfig.ticks);
}
}
start();
</script>
</head>
<body>
<input id="Button1" type="button" value="button" onclick="tt();" />
</body>
</html>
参考文章：http://www.cnblogs.com/KevinYang/archive/2009/07/14/1522915.html
