In this tutorial, We will see the python string join() method with examples.
join() Method
The join() method is one of the methods in a python string. The python string join() method is used to join or combine strings into one string.
Syntax of Python string join() method
separator.join(iterable)
- The join() method, joins separator to the element of iterable object except last.
- String, dictionary, tuple, set, list all are iterable objects.
- The join() method can be used if the iterable object has string values.
- If the iterable object has a non-string value, using the join() method will result in an error.
Example: join() Method with string
s = "python" #string
''' "-" is a separator and s is an iterable object(string). '''
'''joins "-" to each element of string except last. '''
print("-".join(s))
#Output: p-y-t-h-o-nExample: join() Method with list
list = ["Python","Data Science","Machine Learning"] #strings inside the list separator = "#" ''' "#" is a separator and a variable list is an iterable object(list).''' ''' joins "#" to each element of the list except last.''' print(separator.join(list)) #Output: Python#Data Science#Machine Learning
Example: join() Method with tuple
#strings inside the tuple
tuple = ("America","japan" ,"India")
separator = "--"
''' "--" is a separator and a variable tuple is an iterable object(tuple). '''
''' joins "--" to each element of the tuple except last. '''
print(separator.join(tuple))
#Output: America--japan--IndiaExample: join() Method with Dictionary
#Dictionary Keys
#country with calling code
dictionary = {"Japan":"+81","America":"+1","Russia":"+7","India":"+91"}
separator = "**"
''' "**" is a separator and a variable dictionary is an iterable object(dictionary).'''
''' joins "**" to each key of the Dictionary except last.'''
print(separator.join(dictionary))
#Output: Japan**America**Russia**India#Dictionary values
#country with calling code
dictionary = {"Japan":"+81","America":"+1","Russia":"+7","India":"+91"}
separator = "**"
''' "**" is a separator and a variable dictionary is an iterable object(dictionary).'''
value = dictionary.values()
''' joins "**" to each value of the Dictionary except last.'''
print(separator.join(value))
#Output: +81**+1**+7**+91Example: join() Method with set
# strings inside set
set = {"Japan","America","Russia","India"}
separator = "%"
''' "%" is a separator and a variable set is an iterable object(set). '''
''' joins "%%" to each element of set except last. '''
print(separator.join(set))
#Output: Russia%Japan%India%AmericaRelated Posts
- startswith() Method in Python
- split() Method in Python
- replace() Method in Python
- isalnum() Method in Python
- islower() Method in Python
- swapcase() Method in Python
