TypeError:在严格模式函数或用于调用它们的参数对象上，可能无法访问"caller"，"callee"和"arguments"属性

问题描述

以下错误是什么意思，我该如何解决?

What does the following error mean, and how should I fix it?

$ npm test

> location-autosuggest@3.0.0 test /Users/mishamoroshko/location-autosuggest
> mocha test --compilers js:babel/register



  compareKeys()
    should return -1
      1) when first key is different


  0 passing (301ms)
  1 failing

  1) compareKeys() should return -1 when first key is different:
     TypeError: 'caller', 'callee', and 'arguments' properties may not be accessed on strict mode functions or the arguments objects for calls to them
      at Context.<anonymous> (compare-keys/compare-keys.test.js:3:16)

以下是相关部分:

compare-keys/compare-keys.test.js

1. 'use strict';
2. 
3. import { expect } from 'chai';

package.json

"scripts": {
   "test": "mocha test --compilers js:babel/register"
}

.babelrc

{
  "stage": 0
}

mocha.opts

我没有一个.

版本

• babel:5.5.1
• 摩卡咖啡:2.2.5
• 柴:3.0.0

推荐答案

从ES5开始，在严格模式下，您不能使用诸如 callee 之类的参数的某些属性.请参见被调用者页面上的MDN免责声明:

Since ES5, in strict mode, you cannot use some properties of arguments like callee, etc. See for example the disclaimer on MDN on the callee page :

chai 可以使用以下属性之一.

chai may use one of these properties.

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