> For the complete documentation index, see [llms.txt](https://jin-11.gitbook.io/jin-devnote/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://jin-11.gitbook.io/jin-devnote/week4.md).

# 4주차

{% content-ref url="/pages/v2UtyXcGXLoHGvKUawUZ" %}
[1.Express](/jin-devnote/week4/express.md)
{% endcontent-ref %}

{% content-ref url="/pages/XTQH8hpBIbsYlEcNyxJo" %}
[2.Fetch API & Cors](/jin-devnote/week4/fetch-api-and-cors.md)
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{% content-ref url="/pages/03aJV4WAaa7bUUMQ8bZJ" %}
[3.React의 hook](/jin-devnote/week4/react-hooks.md)
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{% content-ref url="/pages/PYdEEvSfGvKkBhdUXbvf" %}
[4.useRef & Custom hook](/jin-devnote/week4/useref-and-custom-hook.md)
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{% content-ref url="/pages/vTDPsNXMe9ah4uEAJesf" %}
[5.usehooks-ts](/jin-devnote/week4/usehooks-ts.md)
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