Hey!
Please help.
I need to make an expression that will check the incoming text for at least one of the words, case insensitive.
Right now, for each word I add two validation expressions.
In the future, a list of these words will be taken for each call from mysql.
Can you tell me if n8n can do such checks with expressions?
Hi @brewoutlay, welcome to the community 
n8n supports regular expressions in the IF node. So you could use a regular expression such as /word1|word2|word3/i to perform your check. Here’s a quick example workflow:
The n8n expression I am using inside my regular expression is $("Mock word list").first().json.words.join("|"). This reads the first item from my “Mock word list” list node and then joins all words in my “words” field using a pip character |. It will of course also work with more than 3 words.
Hope this helps! Let me know if you have any further questions on this 
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