RangeError:在Node.js中调试/记录/检查对象时超过了最大调用堆栈大小。

Given a class definition as below, I am getting RangeError: Maximum call stack size exceeded when trying to see which properties the Object has.

给定一个类定义如下，我得到了RangeError:在尝试查看对象的属性时超出了最大调用堆栈大小。

var Person = (function () {
    function Person(name, age) {
        this.name = name;
        this.age = age;
    }
    Person.prototype.inspect = function () {
        console.log(this);
    };
    return Person;
})();

var radek = new Person("Radek", 28);
radek.inspect();

In browser (Chrome), we will get the following though:

在浏览器(Chrome)中，我们将得到以下内容:

Person {name: "Radek", age: 28, inspect: function}

1 个解决方案

#1

Funny you should ask. By default custom inspect() functions defined on the objects being inspected will be called when we try to inspect them. This leads into a recursion with no end in our case.

有趣的你应该问。当我们试图检查对象时，默认的自定义检查()函数将被调用。在我们的例子中，这导致了一个没有结束的递归。

To alleviate the problem while preserving the name use the util module passing an extra option customInspect into inspect():

为了缓解这个问题，同时保留这个名称，使用util模块通过一个额外的选项自定义检查():

var util = require("util");

var Person = (function () {
    function Person(name, age) {
        this.name = name;
        this.age = age;
    }
    Person.prototype.inspect = function () {
        console.log(util.inspect(this, { 'customInspect': false }));
    };
    return Person;
})();

var radek = new Person("Radek", 28);
radek.inspect();

Which will give us the following:

这将给我们带来以下几点:

{ name: 'Radek', age: 28 }

{姓名:'Radek'，年龄:28}

1 个解决方案

#1

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