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Javascript 循环js类的属性_Javascript_Loops_Properties - Fatal编程技术网
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Javascript 循环js类的属性

javascript loops properties

Javascript 循环js类的属性,javascript,loops,properties,Javascript,Loops,Properties,让我们说： function person(){ this.name = null; this.lastname = null; this.age = null; this.height = null; } 如何遍历属性 比如： foreach(properties as property){ console.log ( property.nameoftheproperty, property.valueoftheproperty); } 您可以在循

让我们说：

function person(){
    this.name = null;
    this.lastname = null;
    this.age = null;
    this.height = null;
}
如何遍历属性

比如：

foreach(properties as property){
     console.log ( property.nameoftheproperty, property.valueoftheproperty);
}
您可以在循环中为..使用
，如下所示


function Person(){
    this.name = null;
    this.lastname = null;
    this.age = null;
    this.height = null;
}

var person = new Person();
for (var key in person) {
    console.log(key, person[key]);
}


输出


name null
lastname null
age null
height null




尝试
for（varx in person）{x，person[x]}
或
Object.keys（person）


for(var prop in properties) {
    console.log(properties[prop]);
}