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Deborah Barnard 2022-03-10 09:29:39 +00:00
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2
docs/nodes/expressions/expressions.md
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@ -68,7 +68,7 @@ This expression:
:::
### Example: writing longer JavaScript
[TODO]
## Custom variables and methods

21
docs/nodes/expressions/luxon.md
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@ -14,11 +14,14 @@ Note that these variables can return different time formats when cast as a strin
```js
{{$now}}
// Returns [Object: "<ISO formatted timestamp>"], for example [Object: "2022-03-09T14:00:25.058+00:00"]
// Returns [Object: "<ISO formatted timestamp>"]
// For example [Object: "2022-03-09T14:00:25.058+00:00"]
{{$now.toString()}}
// Returns the ISO formatted timestamp, for example 2022-03-09T14:02:37.065+00:00
// Returns the ISO formatted timestamp
// For example 2022-03-09T14:02:37.065+00:00
{{"Today's date is " + $now}}
// Returns "Today's date is <unix timestamp>", for example "Today's date is 1646834498755"
// Returns "Today's date is <unix timestamp>"
// For example "Today's date is 1646834498755"
```
## Common tasks
@ -38,7 +41,7 @@ In the expressions editor, enter:
{{$today.minus({days: 7})}}
```
On the 9th March 2022, this returns `[Object: "2022-03-02T00:00:00.000+00:00"]`.
On the 23rd June 2019, this returns `[Object: "2019-06-16T00:00:00.000+00:00"]`.
This example uses n8n's custom variable `$today` for convenience. It is the equivalent of `DateTime.now().set({ hour: 0, minute: 0, second: 0, millisecond: 0 }).minus({days: 7})`.
@ -54,7 +57,7 @@ In [Get n days from today](#get-n-days-from-today), the example gets the date se
For example, you want the field containing the date to be formatted as DD/MM/YYYY.
This expression gets the date seven days before today, and converts it to the DD/MM/YYYY format. So on the 9th March, it returns 02/03/2022:
This expression gets the date seven days before today, and converts it to the DD/MM/YYYY format. So on the 23rd June 2019, it returns 23/06/2019:
```js
{{$today.minus({days: 7}).toLocaleString()}}
@ -66,10 +69,14 @@ You can alter the format. For example:
{{$today.minus({days: 7}).toLocaleString({month: 'long', day: 'numeric', year: 'numeric'})}}
```
On 9th March, this returns "2 March 2022".
On 23rd June 2019, this returns "16 June 2019".
Refer to Luxon's guide on [toLocaleString (strings for humans)](https://moment.github.io/luxon/#/formatting?id=tolocalestring-strings-for-humans) for more information.
### Convert date string to Luxon
### Get the time between two dates
To get the time between two dates, use Luxon's diffs feature. This subtracts one date from another and returns a duration.
@ -77,7 +84,7 @@ To get the time between two dates, use Luxon's diffs feature. This subtracts one
For example, get the number of months between two dates:
```js
{{DateTime.fromISO('2017-03-13').diff(DateTime.fromISO('2017-02-13'), 'months').toObject()}}
{{DateTime.fromISO('201-06-23').diff(DateTime.fromISO('2019-05-23'), 'months').toObject()}}
```
This returns `[Object: {"months":1}]`.