python join

1>>> sentence = ['this','is','a','sentence']
2>>> '-'.join(sentence)
3'this-is-a-sentence'

1list = ['Add', 'Grepper', 'Answer']
2Inline
3> joined = " ".join(list)
4> Add Grepper Answer
5Variable
6> seperator = ", "
7> joined = seperator.join(list)
8> Add, Grepper, Answer

1# example of join() function in python
2
3numList = ['1', '2', '3', '4']
4separator = ', '
5print(separator.join(numList))

1# the join method in python is works like 
2# it joins the the string that you provide to it to a sequence types(lists etc..)
3flowers = [
4    "Daffodil",
5    "Evening Primrose",
6    "Hydrangea",
7    "Iris",
8    "Lavender",
9    "Sunflower",
10    "Tiger Lilly",
11]
12print(", ".join(flowers))
13
14# what the sbove code does is it joins all the flowers in list by ', '
15# output = Daffodil, Evening Primrose, Hydrangea, Iris, Lavender, Sunflower, Tiger Lilly

1>>> ''.join(['A', 'B', 'C'])
2'ABC'
3>>> ''.join({'A': 0, 'B': 0, 'C': 0}) # note that dicts are unordered
4'ACB'
5>>> '-'.join(['A', 'B', 'C'])  # '-' string is the seprator
6'A-B-C'
7

1# Joins all items in a list or tuple, using a specific separator
2lst = ['a', 'b', 'c']
3joinedLst = ', '.join(lst)
4print(x) # Prints 'a, b, c'