Given a string, write a Python program to remove all spaces from it.
Examples:
Input : g e e k Output : geek Input : Hello World Output : HelloWorld
There are various approaches to removing whitespaces in a string. The first one is the Naive approach, which has been discussed in this article. But here we will discuss all the approaches which are specific to Python.
Method 1: Remove spaces from a string using replace[] function
Python3
def
remove[string]:
return
string.replace[
" "
, ""]
string
=
' g e e k '
print
[remove[string]]
Output
geek
Method 2: Remove spaces from a string using split[] and join[]
First, we use the split[] function to return a list of the words in the string, using sep as the delimiter Python string. Then, we use join[] to concatenate the iterable.
Python3
def
remove[string]:
return
"".join[string.split[]]
string
=
' g e e k '
print
[remove[string]]
Output
geek
Method 3: Remove spaces from a string using Python regex
In order to find a string or group of strings, a Regular Expression [RegEx] is a unique string of characters. It may compare a text to a pattern to determine whether it is present or absent. It can also divide a pattern into one or more sub-patterns.
Python3
import
re
def
remove[string]:
pattern
=
re.
compile
[r
'\s+'
]
return
re.sub[pattern, '', string]
string
=
' g e e k '
print
[remove[string]]
Output
geek
Method 4: Remove spaces from a string using translate[]
translate[] returns a string that is a modified string of givens string according to given translation mappings.
Python3
import
string
def
remove[string]:
return
string.translate[
None
,
' \n\t\r'
]
string
=
' g e e k '
print
[remove[string]]
Output
geek
Method 5: Remove spaces from a string using reduce function and conditional statement
Reduce function iterate over the string and it joins to the element of string to result if it is not white space.
Python3
from
functools
import
reduce
def
remove[string]:
return
reduce
[
lambda
x, y: [x
+
y]
if
[y !
=
" "
]
else
x, string, ""];
string
=
' g e e k '
print
[remove[string]]
Output:
geek
Method 6: Remove spaces from a string using lstrip[] function
The lstrip[] creates a new string by either deleting whitespace from the string’s “left” side or its leading whitespace.
Python3
string
=
"www.geeksforgeeks.org www."
string_new
=
string.lstrip[
"w."
]
print
[string_new]
Output
geeksforgeeks.org www.
Method 7: Remove spaces from a string using rstrip[] function
The rstrip[] creates a new string by removing the trailing whitespace. Eliminating the white spaces from the string’s “right” side makes it simpler to recall.
Python3
string
=
"www.geeksforgeeks.org www."
string_new
=
string.rstrip[
"w."
]
print
[string_new]
Output
www.geeksforgeeks.org
Method 8 : Using isspace[] method
Python3
def
remove[string]:
ns
=
""
for
i
in
string:
if
[
not
i.isspace[]]:
ns
+
=
i
return
ns
string
=
' g e e k '
print
[remove[string]]