IF node expression returns false but still goes to True Branch

[Okolie_Chukwuka]

Hi everyone,

I’m using an IF node with an expression to check if a message string exists in a list of strings.

MY WORKFLOW

SAMPLE OUTPUT

The comparison is set to is true.

When I run the workflow, the expression correctly evaluates to false (as shown in the Result preview), but the IF node still routes the message to the True Branch instead of the False Branch.

Has anyone experienced this before or knows what might be going wrong?

Thanks in advance!

• n8n version: : 1.95.2

[fahmiiireza]

hi there, it’s because you’re converting a string into a boolean where the way how it works is like this

it does not really check what’s inside the string, but it checks if the string is empty or undefined or not

so it will always return true if the string has value, but if the string is empty or null or undefined, then it will return false

[fahmiiireza]

for example

   let str1 = "true"; // str1 will be true

   let str2 = ""; // str2 will be false

   let str3 = "hello";  // str3 will be true

   let str4 = "false"; // str4 will be true

if this answer your question, please give it a like and mark it as the solution

[Okolie_Chukwuka]

It doesn’t solve my issue, can you give me an example flow. I simply want to check if the word.text that come into the if branck exist in a list(list of string)

[darrell_tw]

The left side is a string false

It’s not boolean false.

Please use string - is equals to - false

Don’t use Boolean in this case.