def find_matched_by_pattern(pattern):
    print(f'pattern = {pattern}')

https://docs.codewars.com/training/troubleshooting#error-messages-and-printing-your-inputoutput

Does that answer your question?

how do i get the test cases(easy words please i am a child)

Your function has to be curried.

Do you understand "a function .. that returns a predicate function" ?

Tried like 5 versions of code... Not that easy. xD

can anyone tell me what s going on here cant return anything and how do i campare with predicate to pattern?

Approved

Instead of return predicate(word);, try just return predicate. This will return the function itself.

Can someone help me with structure of program?
This is how it looks:

function findMatchedByPattern(pattern) {
the code is here,
function predicate(word){
the code is here
}
return predicate(word);
}
ReferenceError: word is not defined

You are returning a predicate function. That function will have the word as a parameter.

How to read 'word' variable?