Filter Lambda Function

How do I filter out the letter in the set of words with lambda function?

For example:

I have to filter out every word containing letter "K".

["rabbit", "chuck", "Joe", "war", "rock", "docker"]
["chuck", "rock", "docker"]

I was told to provide the efforts:

list = ["rabbit", "chuck", "Joe", "war", "rock", "docker"]
print(list)
listfilter = list(filter(lambda x: (x == 'k'), lst))
print(listfilter)

>Solution :

There are two issues with your code:

1. The list variable name shadows the list() builtin — pick a different name for your original list instead.
2. Your lambda function isn’t correct. Instead of lambda x: x == k, it should be lambda x: 'k' not in x.

data = ["rabbit", "chuck", "Joe", "war", "rock", "docker"]
listfilter = list(filter(lambda x: ('k' not in x), data))

# Prints ['rabbit', 'Joe', 'war']
print(listfilter)