<!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>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<script language="javascript">
test = {
value : 'self.value',
exec : function(){
alert(this.value);
}
}
function hhh(obj){
test.exec();
test.exec.apply(obj);
}
</script>
</head>
<body>
<input type="button" onclick="hhh(this);" value="input.value"/>
</body>
</html>
运行以上的页面就很快明白了.
call和apply函数可以处理匿名函数
关于类的初始化应用如下：
Person = function(){
this.Init.apply(this, arguments);
};
Person.prototype = {
first : null,
last : null,
Init : function(first, last){
this.first = first;
this.last = last;
},
fullName : function(){
return this.first + ' ' + this.last;
},
fullNameReversed : function(){
return this.last + ', ' + this.first;
}
};
var s = new Person2('creese', 'yang');
alert(s.fullName());
alert(s.fullNameReversed());
call和apply函数可以赋值函数内容（带匿名参数；但不触发）
关于函数绑定事件应用如下：
Function.prototype.BindForEvent = function() {
var __m = this, object = arguments[0], args = new Array();
for(var i = 1; i < arguments.length; i++){
args.push(arguments[i]);
}
return function(event) {
return __m.apply(object, [( event || window.event)].concat(args));
}
}
call和apply函数关于函数绑定参数应用如下：
Function.prototype.Bind = function() {
var __m = this, object = arguments[0], args = new Array();
for(var i = 1; i < arguments.length; i++){
args.push(arguments[i]);
}
return function() {
return __m.apply(object, args);
}
}
