How to find strings with matched letters in list/array using lambda function?

Question

I am using lambda function, python 3.6 and Mongodb atlas. In mongodb i have one collection below like this. collection name profile. below as the collection structure.

Answer 1

Follow the below code:

 ch2 = [document["channel"] for document in ch]
 new_list = []

 for word in ch2[0]:
    print(word)
    if(re.findall(name, word)):
        new_list.append(word)

  return new_list

the issue has been resolved