Now that you’ve learned to break strings apart using
.split(), let’s learn to put them back together using
.join() is essentially the opposite of
.split(), it joins a list of strings together with a given delimiter. The syntax of
Now this may seem a little weird, because with
.split() the argument was the delimiter, but now the argument is the list. This is because join is still a string method, which means it has to act on a string. The string
.join() acts on is the delimiter you want to join with, therefore the list you want to join has to be the argument.
This can be a bit confusing, so let’s take a look at an example.
my_munequita = ['My', 'Spanish', 'Harlem', 'Mona', 'Lisa'] print(' '.join(my_munequita)) # => 'My Spanish Harlem Mona Lisa'
We take the list of strings,
my_munequita, and we joined it together with our delimiter,
' ', which is a space. The space is important if you are trying to build a sentence from words, otherwise, we would have ended up with:
print(''.join(my_munequita)) # => 'MySpanishHarlemMonaLisa'