看一段代码啊
<script type="text/javascript">
var whoami = function(name,email) {
this.name = name;
this.email = email;
answerToMyName:function() {
alert(this.name);
};
answerToMyEmail:function() {
alert(this.email);
};
};
var addHandler = function() {
var newInstance = new whoami('smellcode','smellcode@gmail.com');
var button = document.getElementById('buttonId');
button.onclick = newInstance.answerToMyName;
};
window.onload = addHandler;
</script>
<body>
<input type="button" id="buttonId" name="buttonName" value="点击"/>
</body>
怎么没用？
[解决办法]
var whoami = function(name,email)
不是对象吧，貌似应该用new whoami = function(name,email)
[解决办法]
answerToMyName:function() {
alert(this.name);
};
在ff下报错
[解决办法]
- JScript code
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Insert title here</title><script type="text/javascript">var whoami = function(name,email) { this.name = name; this.email = email; this.answerToMyName = function() { alert(this.name); }; this.answerToMyEmail = function() { alert(this.email); }; }; var addHandler = function() { var newInstance = new whoami('smellcode','smellcode@gmail.com'); var button = document.getElementById('buttonId'); button.onclick = newInstance.answerToMyName; }; window.onload = addHandler;</script></head><body> <input type="button" id="buttonId" name="buttonName" value="点击"/></body></html>
[解决办法]
- JScript code
//错误一this.answerToMyName = function(){ alert(this.name);//错误二 //这个this一旦你在后面使用button.onclick = newInstance.answerToMyName;的时候，这个this指向的是button而非你的newInstance。};你的写法是无法作为一个对象的方法被调用的