How to check the type of a nested property in mocha-chai?

@brandy 

In order to check the type of a nested property in mocha-chai, you can use the deep flag in the .property() assertion provided by Chai.

Here is an example of how to check the type of a nested property:

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const { expect } = require('chai');

describe('Nested Property Type Check', () => {
  it('should check the type of a nested property', () => {
    const obj = {
      foo: {
        bar: 'baz'
      }
    };

    expect(obj).to.have.deep.property('foo.bar').that.is.a('string');
  });
});

In this example, the .deep.property() method is used to access the nested property foo.bar and then the .is.a() method is used to check if the type of the value is a string.

You can replace 'string' with any other JavaScript data type such as 'number', 'object', 'boolean', etc. based on the type you want to check for.