Python join() function

join() function is one of the most important Python's built in function of an iterable. Sometimes it happened that you want to convert an iterable's elements into a string so for the same you can use join function in Python. implode function requires array/iterable as argument to join into an string. It is called on an separator string. The join function convert each element of an array/iterable into a string. join() function attach separator string after each element of the array. The example of join function is mentioned below: Code

weekDaysArray = ("Sunday", "Monday", "Tuesday", "Wednesday", \
"Thursday", "Friday", "Saturday")

weekDaysString = ",".join(weekDaysArray)

print(weekDaysString);

In above mentioned example we have a tuple with the name of weekDaysArray which have all the week days. In line number 2 we have used join function with weekDaysArray tuple and provide separator string as comma(,) then join function returns a string of all the week days and we store it in weekDaysString variable and print it on the screen through print function.