String join() Method in Python

Python String join() Method

The join() method in Python is used to concatenate a sequence of strings from an iterable (e.g., a list, tuple, or set) into a single string, with each element separated by the string on which the join() method is called.Here's the syntax of the join() method:

separator_string.join(iterable)

Parameters:

• separator_string: The string that will be used as a separator between the elements in the resulting string.
• iterable: An iterable (e.g., a list, tuple, set) containing strings that will be joined together.

Example:

# Example using join() method
words = ["Hello", "world", "Python"]
separator = " "

result = separator.join(words)

print("Words:", words)
print("Result after join:", result)

Output:

Words: ['Hello', 'world', 'Python']
Result after join: Hello world Python

In this example, we have a list of strings called words containing three elements: "Hello", "world", and "Python". We want to join these elements into a single string with spaces as separators, so we use the join() method with a space " " as the separator. The resulting string is "Hello world Python".

The join() method is commonly used to concatenate strings efficiently. It is particularly useful when you have a collection of strings that you want to join together with a specific separator to form a longer string.