[understandinges6]

[wind f]

hi Nicholas C. Zakas:

I am very glad to write to you. I am reading your book《Understanding ES6》recently. I think this is  a very nice book. But I have a problem about the 12 chapter when create a array object by proxy.

I think it may be like this code：

Reflect.set(trapTargat, 'length', Number(key) + 1)

But not this you writed:

Reflect.set(trapTargat, 'length', currentLength + 1)

This is an example to explain the problem:

Normal array:

When run your code:

When run my new code:

I do not know is there any mistake in your code ?

Best wishes and hope your reply！

[wind f]

When I went home yesterday night and read this chapter again. I find that it is my fault to remember mistake content. You are right. I am so sorry about that. Please close or delete this issue.

[Nicholas Zakas]

No problem. Thanks for the followup. 

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Nicholas C. Zakas (@slicknet)

Owner, Human Who Codes LLC

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