How to concatenate a list of characters to a string:
In this post, we will learn how to concatenate a list of characters to a string in python. We can either iterate through the items one by one and concatenate them to a string. Also, we have other ways that can be used to do this.
Method 1: By iterating throught the characters in the list:
This is the basic approach. We can use one for loop, iterate through the characters in the list and append them to a string. Once the loop will end, the string will hold the final result.
given_list = ['a', 'b', 'c', 'd', 'e', 'f', 'g']
final_str = ''
for ch in given_list:
final_str += ch
print('Final string : {}'.format(final_str))Here,
- given_list is the given list of characters.
- final_str is the final string that will hold the concatenate value of all characters.
- Using a for in loop, we are iterating through the list of characters and adding each value to final_str.
- The last line is printing the value of final_str
If you run this program, it will look as like below:
Method 2: Using str.join():
join method, defined in python string takes one iterable as its argument and joins all items in that iterable to a string. If we pass a list of characters, it joins all characters in the list to a string.
If we write the above program in str.join, it will look as like below:
given_list = ['a', 'b', 'c', 'd', 'e', 'f', 'g']
final_str = ''.join(given_list)
print('Final string : {}'.format(final_str))It will print the same output.
Method 3: Using reduce():
reduce is another method that can be used to concatenate one list of characters to a string. We can use add that is defined in operator.
from operator import add
from functools import reduce
given_list = ['a', 'b', 'c', 'd', 'e', 'f', 'g']
final_str = reduce(add, given_list)
print('Final string : {}'.format(final_str))It will give the same output.
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