Question

我试图提供一个构造函数的例子。我希望我做得很好，仍然会出错。有人可以帮我吗？

<html>
<head></head>
<body> 
<script>

var alhpa = function(name, age){
this.name = name;
this.age = age; 
}

var obj1 = new alpha("Peter", 29);
var obj2 = new alpha("Jenny", 17);
var obj3 = new alpha("Mark", 34);

console.log(obj1);
console.log(obj2);
console.log(obj3);

</script> 
</body> 
</html>

Answer 1

看起来你有拼写错误。

这应该是alpha not alhpa

var alpha = function(name, age){
    this.name = name;
    this.age = age; 
}

var obj1 = new alpha("Peter", 29);
var obj2 = new alpha("Jenny", 17);
var obj3 = new alpha("Mark", 34);

console.log(obj1);
console.log(obj2);
console.log(obj3);

Answer 2

你犯了拼写错误 alhpa！= alpha

<强>演示

＆＃13;

<html>
<head></head>
<body> 
<script>

var alpha = function(name, age){
this.name = name;
this.age = age; 
}

var obj1 = new alpha("Peter", 29);
var obj2 = new alpha("Jenny", 17);
var obj3 = new alpha("Mark", 34);

console.log(obj1);
console.log(obj2);
console.log(obj3);

</script> 
</body> 
</html>

＆＃13;

Answer 3

将alhpa重命名为alpha。这是一个粗心的错误。

＆＃13;

<html>
<head></head>
<body> 
<script>

var alpha= function(name, age){
this.name = name;
this.age = age; 
}

var obj1 = new alpha("Peter", 29);
var obj2 = new alpha("Jenny", 17);
var obj3 = new alpha("Mark", 34);

console.log(obj1);
console.log(obj2);
console.log(obj3);

</script> 
</body> 
</html>

＆＃13;

构造函数给出错误

3 个答案: