PythonString methods
str.
Joins the elements of a collection of strings into one string with a separator.
- Returns
- A new string.
- Changes the original
- No
Example
#Python
tags = ["html", "css", "python"]
print(", ".join(tags))
print(" → ".join(tags))
print("".join(["C", "o", "d", "e"]))
scores = [92, 78, 85]
print(" | ".join(str(s) for s in scores))Resultsaved result, you can check it
html, css, python
html → css → python
Code
92 | 78 | 85
Definition and usage
#The join() method is called on the separator, and takes a collection of strings as its argument: ", ".join(names) joins names with commas. This syntax looks unusual at first, but it is very practical.
All elements must be strings. Numbers need to be converted first, most conveniently with a generator: ", ".join(str(n) for n in numbers).
This is also the fastest way to build long strings out of many parts. Repeatedly adding strings with + in a loop is much slower.
Syntax
#Syntax
separator.join(iterable)Parameters
#iterable
a collection of strings
The elements to join.
Good practices
#- When joining numbers, convert them to text first:
", ".join(map(str, numbers)). - In an English sentence, join everything except the last item, then add the word
andbefore it (for example: HTML, CSS, and Python).
Related entries
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