Codewars note:列表过滤

In this kata you will create a function that takes a list of non-negative integers and strings and returns a new list with the strings filtered out.

Example

filter_list([1,2,'a','b']) == [1,2]
filter_list([1,'a','b',0,15]) == [1,0,15]
filter_list([1,2,'aasf','1','123',123]) == [1,2,123]

Solution:

def filter_list(l):
    l2 = []
    for i in l:
        if type(i) is int:
            l2.append(i)
    return l2

 

def filter_list(l):
    return [i for i in l if type(i) is int]

 

:type()