Thank you for your contribution @aafeng.
We've been reviewing your tutorial and suggest the following points below:

- Tutorial very well structured and explained.

- Basic HTML code does not need to be presented in the tutorial. The reader can check on your proof of work.

- We really like the possibility of seeing the demo. It is very important for readers, they can experiment and see how the features that you have developed work.

- Why didn't you use the required parameter in the HTML code?For example:
```
<input v-model="posting_key" type="password" class="form-control" id="postingKey" required>
```
<br/>

Thank you for your work in developing this tutorial.
Looking forward to your upcoming tutorials.

Your contribution has been evaluated according to [Utopian policies and guidelines](https://join.utopian.io/guidelines), as well as a predefined set of questions pertaining to the category.

To view those questions and the relevant answers related to your post, [click here](https://review.utopian.io/result/8/2-1-3-1-1-3-1-3-).

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