# Using ChatGPT to generate javascript for code node

**URL:** <https://community.n8n.io/t/using-chatgpt-to-generate-javascript-for-code-node/23309>\
**Category:** Questions\
**Tags:** code\
**Created:** [February 22, 2023, 9:45am UTC](https://community.n8n.io/t/using-chatgpt-to-generate-javascript-for-code-node/23309 "2023-02-22T09:45:49Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Jack](https://avatars.discourse-cdn.com/v4/letter/j/cc9497/32.png) [@Jack](https://community.n8n.io/u/Jack)\
**Post date:** [February 22, 2023, 9:45am UTC](https://community.n8n.io/t/using-chatgpt-to-generate-javascript-for-code-node/23309/1 "2023-02-22T09:45:49Z")

</div>

I asked “_ **write javascript for n8n code node that tells me if it is the 4th Wednesday of the month** _” and it generated the code below (which worked when I commented out line 1):

```auto
const { DateTime } = require("luxon");

// Get the current date
const now = DateTime.now();

// Check if today is the 4th Wednesday of the month
if (now.weekday === 3 && now.day > 22 && now.day <= 28) {
  // Today is the 4th Wednesday of the month
  return { message: "Today is the 4th Wednesday of the month" };
} else {
  // Today is not the 4th Wednesday of the month
  return { message: "Today is not the 4th Wednesday of the month" };
}

```

I then asked “_ **Update the script so I can use it in future months and years** _”

```auto
const { DateTime } = require("luxon");

// Get the current date
const now = DateTime.now();

// Calculate the 4th Wednesday of the month
const year = now.year;
const month = now.month;
const firstDayOfMonth = DateTime.local(year, month, 1);
const firstWednesday = firstDayOfMonth.plus({ days: (3 - firstDayOfMonth.weekday + 7) % 7 });
const fourthWednesday = firstWednesday.plus({ weeks: 3 });

// Check if today is the 4th Wednesday of the month
if (now.toISODate() === fourthWednesday.toISODate()) {
  // Today is the 4th Wednesday of the month
  return { message: "Today is the 4th Wednesday of the month" };
} else {
  // Today is not the 4th Wednesday of the month
  return { message: "Today is not the 4th Wednesday of the month" };
}

```

It seems to work, but as a non-coder I’m not 100% sure!

Does it make sense?

---

<div class="post-metadata">

**Author:** ![deborah](https://dub1.discourse-cdn.com/n8n/user_avatar/community.n8n.io/deborah/32/13075_2.png) [@deborah](https://community.n8n.io/u/deborah)\
**Post date:** [February 22, 2023, 10:09am UTC](https://community.n8n.io/t/using-chatgpt-to-generate-javascript-for-code-node/23309/3 "2023-02-22T10:09:25Z")

</div>

**Short answer**

To get this to run in the Code node, you’ll need to remove the first line (where you require Luxon) Luxon is automatically available in n8n already.

Once I remove that line, and ran the code in the Code node, it worked (delightfully, today is the 4th Wednesday of the month)

**A bit more detail**

As you mentioned you’re not a coder, you may be wondering what Luxon is. It’s a JavaScript library to make working with date and time easier. [Luxon website](https://moment.github.io/luxon/#/) if you want to check it out.

Luxon in n8n provides a lot of utility: [more info in the docs](https://docs.n8n.io/code-examples/javascript-functions/luxon/)

If you want to, you can simplify your code a little more: n8n uses Luxon to provide two custom variables, including `$now`, which is equivalent to `DateTime.now()`. So your final code could look like this:

```auto
// Calculate the 4th Wednesday of the month
const year = $now.year;
const month = $now.month;
const firstDayOfMonth = DateTime.local(year, month, 1);
const firstWednesday = firstDayOfMonth.plus({ days: (3 - firstDayOfMonth.weekday + 7) % 7 });
const fourthWednesday = firstWednesday.plus({ weeks: 3 });

// Check if today is the 4th Wednesday of the month
if ($now.toISODate() === fourthWednesday.toISODate()) {
  // Today is the 4th Wednesday of the month
  return { message: "Today is the 4th Wednesday of the month" };
} else {
  // Today is not the 4th Wednesday of the month
  return { message: "Today is not the 4th Wednesday of the month" };
}

```

---

<div class="post-metadata">

**Author:** ![system](https://dub1.discourse-cdn.com/n8n/user_avatar/community.n8n.io/system/32/195824_2.png) [@system](https://community.n8n.io/u/system)\
**Post date:** [March 1, 2023, 10:10am UTC](https://community.n8n.io/t/using-chatgpt-to-generate-javascript-for-code-node/23309/4 "2023-03-01T10:10:12Z")

</div>

Closed on March 1, 2023, 10:10am UTC

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