var obj = { name:"jack",
getName:function(){return this.name}
};
//输出name,getName
for(var atr in obj) {
alert(atr);
}
var obj = {name:"jack",
getName:function(){return this.name},
toString:function(){return "I'm jack."}
}
for(var atr in obj) {
alert(atr);
}
Object.prototype.clone = function() {}
var obj = {
name: 'jack',
age: 33
}
// name, age, clone
for (var n in obj) {
alert(n)
}
if (!Function.prototype.bind) {
Function.prototype.bind = function(scope) {
var fn = this
return function () {
fn.apply(scope, arguments)
}
}
}
function greet(name) {
alert(this.greet + ', ' + name)
}
for (var n in greet) {
alert(n)
}
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