Which method can be used to remove any whitespace from both the beginning and the end of a string

0

If str is your string variable Check for str.strip() https://docs.python.org/2/library/stdtypes.html#str.strip

Prokopios Poulimenos

0

Prokopios Poulimenos It is not recommended to use functions (e.g. str) as variable names as it can mess up with your code. Python 3 Documentation. https://docs.python.org/3/library/stdtypes.html#str.strip

Diego

0

@Diego It was just an example.

Prokopios Poulimenos

Asked 12 years, 7 months ago

Viewed 208k times

I need to remove whitespaces after the word in the string. Can this be done in one line of code?

Example:

string = "    xyz     "

desired result : "    xyz" 

asked Mar 3, 2010 at 15:36

4

>>> "    xyz     ".rstrip()
'    xyz'

There is more about rstrip in the documentation.

answered Mar 3, 2010 at 15:37

SilentGhostSilentGhost

294k64 gold badges301 silver badges291 bronze badges

You can use strip() or split() to control the spaces values as the following, and here is some test functions:

words = "   test     words    "

# Remove end spaces
def remove_end_spaces(string):
    return "".join(string.rstrip())

# Remove first and  end spaces
def remove_first_end_spaces(string):
    return "".join(string.rstrip().lstrip())

# Remove all spaces
def remove_all_spaces(string):
    return "".join(string.split())

# Remove all extra spaces
def remove_all_extra_spaces(string):
    return " ".join(string.split())

# Show results
print(f'"{words}"')
print(f'"{remove_end_spaces(words)}"')
print(f'"{remove_first_end_spaces(words)}"')
print(f'"{remove_all_spaces(words)}"')
print(f'"{remove_all_extra_spaces(words)}"')

output:

"   test     words    "

"   test     words"

"test     words"

"testwords"

"test words"

i hope this helpful .

answered Nov 3, 2020 at 14:48

K.AK.A

9008 silver badges18 bronze badges

2

Mohammed

Guys, does anyone know the answer?

get which method can be used to remove any whitespace from both the beginning and the end of a string? from screen.

Remove Space From a String in Python

Spaces are also considered as a character inside a string, and sometimes unnecessary spaces in the string cause wrong results. Therefore, such blank spaces should be removed from the string before being used.

Remove Space From a String in Python

Spaces are also considered as a character inside a string, and sometimes unnecessary spaces in the string cause wrong results.

For example, instead of typing 'Alex', a person typed his name 'Alex  ' (see two spaces at the end of the string), and if we compare them using the '==' operator.

Example:

if 'Alex' == 'Alex ':

print ("Hello Alex!")

else: print ("Not found") Output: Not found

The output of the above program will be 'not found', and this way, additional spaces may lead to wrong results. Therefore, such blank spaces should be removed from the string before being used. This is possible by using rstrip(), lstrip() and strip() methods in Python. These three functions do the same thing, but there is a slight difference between these three functions.

Function Description

rstrip() rstrip() method removes whitespace at the end of a string.

lstrip() lstrip() method removes whitespace at the beginning of a string.

strip() strip() method removes whitespace at the beginning and end (both sides) of a string.

These three methods do not remove empty spaces between the strings and are usually used where the input is taken from the user.

Example:

name = ' Chris Gayle '

#remove spaces from left

print (name.lstrip())

#remove spaces from right

print (name.rstrip())

#remove spaces from both side

print (name.strip())

Output: Chris Gayle Chris Gayle Chris Gayle report this ad

स्रोत : www.w3schools.in

Manipulating Strings in Java

The phrases in this chapter show you some common tasks involving strings.

Manipulating Strings in Java

Jan 19, 2007 📄 Contents ␡ Comparing Strings

Searching For and Retrieving Substrings

Processing a String One Character at a Time

Reversing a String by Character

Reversing a String by Word

Making a String All Uppercase or All Lowercase

Trimming Spaces from the Beginning or End of a String

Parsing a Comma-Separated String

⎙ Print + Share This

Page 1 >

Much of what you do in any programming language involves the manipulation of strings. The phrases in this chapter show you some common tasks involving strings.

This chapter is from the book 

This chapter is from the book

This chapter is from the book 

Java Phrasebook Learn More Buy

Much of what you do in any programming language involves the manipulation of strings. Other than numeric data, nearly all data is accessed as a string. Quite often, even numeric data is treated as a simple string. It is difficult to imagine being able to write a complete program without making use of strings.

The phrases in this chapter show you some common tasks involving strings. The Java language has strong built-in support for strings and string processing. Unlike the C language, strings are built-in types in the Java language. Java contains a String class that is used to hold string data. Strings in Java should not be thought of as an array of characters as they are in C. Whenever you want to represent a string in Java, you should use the String class, not an array.

An important property of the String class in Java is that once created, the string is immutable. This means that once created, a Java String object cannot be changed. You can reassign the name you’ve given a string to another string object, but you cannot change the string’s contents. Because of this, you will not find any set methods in the String class. If you want to create a string that you can add data to, such as you might in some routine that builds up a string, you should use the StringBuilder class if you are using JDK 1.5, or the StringBuffer class in older versions of Java, instead of the String class. The StringBuilder and StringBuffer classes are mutable; thus you are allowed to change their contents. It is very common to build strings using the StringBuilder or StringBuffer class and to pass or store strings using the String class.

Comparing Strings

boolean result = str1.equals(str2);boolean result2 = str1.equalsIgnoreCase(str2);

The value of result and result2 will be true if the strings contain the same content. If the strings contain different content, the value of result and result2 will be false. The first method, equals(), is case sensitive. The second method, equalsIgnoreCase(), will ignore the case of the strings and return true if the content is the same regardless of case.

String comparison is a common source of bugs for novice Java programmers. A novice programmer will often attempt to compare strings using the comparison operator ==. When used with Strings, the comparison operator == compares object references, not the contents of the object. Because of this, two string objects that contain the same string data, but are physically distinct string object instances, will not compare as equal when using the comparison operator.

The equals() method on the String class compares a string’s contents, rather than its object reference. This is the preferred string comparison behavior in most string comparison cases. See the following example:

String name1 = new String("Timmy");

String name2 = new String("Timmy");

if (name1 == name2) {

System.out.println("The strings are equal.");

} else {

System.out.println("The strings are not

equal."); }

The output from executing these statements will be

The strings are not equal.

Now use the equals() method and see the results:

String name1 = new String("Timmy");

String name2 = new String("Timmy");

if (name1.equals(name2)) {

System.out.println("The strings are equal.");

} else {

System.out.println("The strings are not

equal."); }

The output from executing these statements will be

The strings are equal.

Another related method on the String class is the compareTo() method. The compareTo() method compares two strings lexographically, returning an integer value—either positive, negative, or 0. The value 0 is returned only if the equals() method would evaluate to true for the two strings. A negative value is returned if the string on which the method is called alphabetically precedes the string that is passed as a parameter to the method. A positive value is returned if the string on which the method is called alphabetically comes after the string that is passed as a parameter. To be precise, the comparison is based on the Unicode value of each character in the strings being compared. The compareTo() method also has a corresponding compareToIgnoreCase() method that performs functionally the same with the exception that the characters’ case is ignored. See the following example:

String name1="Camden";

String name2="Kerry";

int result = name1.compareTo(name2);

स्रोत : www.informit.com

“Which method can be used to remove any whitespace from both the beginning and the end of a string? in python” Code Answer’s

python delete white spaces

python by Proud Polecat on May 08 2020 Comment

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sentence = ' hello apple'

2 sentence.strip() 3 >>> 'hello apple'

Source: stackoverflow.com

python remove whitespace from start of string

python by Breakable Buffalo on Nov 24 2020 Comment

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' hello world! '.strip()

2 'hello world!' 3 ​ 4 ​ 5

' hello world! '.lstrip()

6 'hello world! ' 7 ​ 8

' hello world! '.rstrip()

9 ' hello world!'

Source: www.tutorialspoint.com

python trim whitespace from end of string

python by Embarrassed Earthworm on May 07 2020 Comment

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>>> " xyz ".rstrip()

2 ' xyz'

Source: stackoverflow.com

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