IF issue. Wrong type ' NNN' is a string but was expecting a number

[barn4k]

Bug Description

I have pretty odd situation with the IF node. I have set it to check if some value is greater than 1, I see that the value is actually a number, but the node keeps saying that it is a string

To Reproduce

copy the workflow

{
  "meta": {
    "templateCredsSetupCompleted": true,
    "instanceId": "ea8ccd7cb9d9fc233a4683c7569b952c9669ba9d3ba1459d89a9944d357fa5b3"
  },
  "nodes": [
    {
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "id": "5f8d0b3b-b181-4f7f-81e6-dbe9b198cc79",
              "name": "cases",
              "value": "={{ $json.result.total }}",
              "type": "number"
            },
            {
              "id": "0c09d6fd-d232-4cce-bf91-5c5c04fd5b10",
              "name": "cid",
              "value": "={{ $json.result.cases[0].case_id }}",
              "type": "number"
            },
            {
              "id": "3ea2cf36-6c9f-4525-86e1-bb4ffb5974e5",
              "name": "state",
              "value": "={{ $json.result.cases[0].state.state_name }}",
              "type": "string"
            },
            {
              "id": "db3cdb66-1c0b-46e2-bc3e-c7e707d25e38",
              "name": "tags",
              "value": "={{ Object.values($json.result.cases[0].tags).map(t => t.tag_title) }}",
              "type": "array"
            },
            {
              "id": "546dd0da-d597-4a00-8f7a-9f83313c8229",
              "name": "created",
              "value": "={{ DateTime.fromISO($json.result.cases[0].initial_date) }}",
              "type": "string"
            },
            {
              "id": "8d2fbf7c-a8b9-4bde-8e77-5a533ddf1ef6",
              "name": "createdDaysAgo",
              "value": "={{ DateTime.fromISO($json.result.cases[0].initial_date).diffNow('days').toObject().days*-1 }}",
              "type": "number"
            },
            {
              "id": "e3b37e5e-1429-4714-b143-9e9068a2fa2e",
              "name": "modified",
              "value": "={{ DateTime.fromSeconds(parseInt(Object.keys($json.result.cases[0].modification_history).at(-1))) }}",
              "type": "string"
            },
            {
              "id": "be0c2e12-0a86-4977-9a3e-7bd449f7aa9f",
              "name": "modifiedDaysAgo",
              "value": "={{ DateTime.fromSeconds(parseInt(Object.keys($json.result.cases[0].modification_history).at(-1))).diffNow('days').toObject().days*-1 }}",
              "type": "number"
            }
          ]
        },
        "options": {}
      },
      "id": "a4351a70-211d-4d60-a505-9439b2c2b2b3",
      "name": "Set case details",
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.3,
      "position": [
        560,
        360
      ]
    },
    {
      "parameters": {},
      "id": "7fa70729-b44d-4e2f-8590-ef4ccc3997f9",
      "name": "When clicking \"Test workflow\"",
      "type": "n8n-nodes-base.manualTrigger",
      "typeVersion": 1,
      "position": [
        300,
        360
      ]
    },
    {
      "parameters": {
        "conditions": {
          "options": {
            "caseSensitive": true,
            "leftValue": "",
            "typeValidation": "strict"
          },
          "conditions": [
            {
              "id": "2cfd182b-d63c-4b8d-a97e-e45662678d64",
              "leftValue": "=\n {{ $json.modifiedDaysAgo }}",
              "rightValue": 1,
              "operator": {
                "type": "number",
                "operation": "gt"
              }
            }
          ],
          "combinator": "and"
        },
        "options": {}
      },
      "id": "d92d9681-7597-4dfc-a3ba-d3346c531882",
      "name": "IF case updated >1 day ago",
      "type": "n8n-nodes-base.if",
      "typeVersion": 2,
      "position": [
        820,
        360
      ]
    }
  ],
  "connections": {
    "Set case details": {
      "main": [
        [
          {
            "node": "IF case updated >1 day ago",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "When clicking \"Test workflow\"": {
      "main": [
        [
          {
            "node": "Set case details",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "pinData": {
    "Set case details": [
      {
        "cases": 1,
        "cid": 191,
        "state": "Open",
        "tags": [],
        "created": "2024-03-24T03:27:52.811+01:00",
        "createdDaysAgo": 59.671657395833336,
        "modified": "2024-05-22T19:14:36.000+02:00",
        "modifiedDaysAgo": 0.014213090277777778
      }
    ]
  }
}

Expected behavior

the IF node should treat the number as a number...

Operating System

Cloud / Docker

n8n Version

1.41.1

Node.js Version

dunno

Database

SQLite (default)

Execution mode

main (default)

[Joffcom]

Hey @barn4k,

It looks like your input has a new line character at the start and a space, By removing these string values it is then correctly using a number.

In your JSON this looks like this "=\n {{ $json.modifiedDaysAgo }}", This looks to be more like a typo than a bug. I am going to mark this as closed, Let me know if once removing the extra characters you still have the same issue.