Remove value if date occurred before 01.01.1900

[Eventurum]

I have to remove value if its date occurred after 01.01.1900.

I get seven different dates from google sheets. For example I got them in Set node. But I need only dates what occurred after 01.01.1900. I have to remove other. I wrote a function in code node but it doesn’t working. What can I do to get rid of unnecessary dates?

My example workflow

Output example

Information on your n8n setup

• n8n version: 0.224.4
• Database: SQLite
• n8n EXECUTIONS_PROCESS setting: main
• Running n8n via: Docker Compose
• Operating system: Ubuntu

[pemontto]

In your current example all the dates are in a single item. Is this expected, or will the dates be coming through as individual items all under a date key? Can you share a redacted sample of the incoming data?

[Eventurum]

All these dates are coming from single google sheets row in a single item. I can share with you an actual example of workflow and outputs:

This is actual data from google sheets

[pemontto]

A JSON blob of a redacted item would be useful. A few more questions:

• Is that set of fields with dates predictable, or does it sometimes change?
• Do you want to drop the entire item if ANY or ALL of the dates are before 01.01.1990
• OR do you just want to remove that field from the item if it’s before 01.01.1990

[Eventurum]

Thank you for your help.
I get seven different dates from google sheets. The number of dates is permanent but the actual dates can be different. I’m not interested in dates if it’s before 01.01.1990. So I want to remove all fields from item if it’s BEFORE 01.01.1990 and keep fields if it’s AFTER 01.01.1990.

[pemontto]

Something like this

[Eventurum]

Thank you for your work!
But I’m getting this error while executing your workflow

I’m pretty bad in JS, maybe I did something wrong

[Eventurum]

With my own data I’ve got same issue

[pemontto]

Sorry for the dud workflow… it works in 0.225, but not 0.224 something changed quite recently . I just changed the return from return newItem to return { json: newItem}

This should work for you:

[Eventurum]

Thank you so much!