Python JS Spread

gistfile1.py

# spread
# Author:- Rohit Tanwar
# https://github.com/kriadmin/30-seconds-of-python-code
# Contributors:-Rohit Tanwar

# Implements javascript's [].concat(...arr). Flattens the list(non-deep) and returns an list.

def spread(arg):
    ret = []
    for i in arg:
        if isinstance(i, list):
            ret.extend(i)
        else:
            ret.append(i)
    return ret

"""
>>>spread([1,2,3,4,5, [6,7,8]])
[1, 2, 3, 4, 5, 6, 7, 8]
"""