Trim Function in String Manipulations

 

`Trim`, `TrimStart`, and `TrimEnd`

In C#, the Trim, TrimStart, and TrimEnd methods are used to remove whitespace or specific characters from the beginning, end, or both ends of a string. Here's an overview of each method with definitions and examples:

 

TrimStart

• Purpose: Removes all leading whitespace characters from the string, or a set of specified characters.
• Be default it removes  all leading white spaces If You are not provides any character

String str=”    *#^ Hello Software Engineers ^#*      ”

string result = str.TrimStart();

output = ”*#^ Hello Software Engineers ^#*      ”

Note : if nothing provided leading spaces get trimmed

 

String str=”    *#^ Hello Software Engineers ^#*      ”

string result = str.TrimStart(‘*’);

output : ”    *#^ Hello Software Engineers ^#*      ”

Note : here leading char is space that’s why no trim happen

 

String str=”    *#^ Hello Software Engineers ^#*      ”

string result = str.TrimStart(‘ ’,‘*’,’#’,’^’);

output : “Hello Software Engineers ^#*      ”

Note : here leading char (‘  ’,‘*’,’#’,’^’) leading chars are removed , order of params not required

 

TrimEnd

• Purpose: Removes all trailing whitespace characters from the string, or a set of specified characters.
• Be default it removes  all ending white spaces If You are not provides any character

 

String str=”    *#^ Hello Software Engineers ^#*      ”

string result = str.TrimEnd();

output = ”    *#^ Hello Software Engineers ^#* ”

Note : if nothing provided ending spaces get trimmed

 

String str=”    *#^ Hello Software Engineers ^#*      ”

string result = str. TrimEnd(‘*’);

output : ”    *#^ Hello Software Engineers ^#*      ”

Note : here End char is space that’s why no trim happen

 

String str=”    *#^ Hello Software Engineers ^#*      ”

string result = str. TrimEnd(‘  ’,‘*’,’#’,’^’);

output : “    *#^ Hello Software Engineers ”

Note : here leading char (‘ ’,‘*’,’#’,’^’) leading chars are removed , order of params not required

 

 

Trim

• Purpose: Removes all leading and trailing whitespace characters from the string, or a set of specified characters.
• All leading and ending spaces get trimmed if nothing provided

 

String str=”    *#^ Hello Software Engineers ^#*      ”

string result = str.Trim();

output = ”*#^ Hello Software Engineers ^#* ”

Note : if nothing provided ending spaces get trimmed

 

String str=”    *#^ Hello Software Engineers ^#*      ”

string result = str. Trim(‘*’);

output : ”    *#^ Hello Software Engineers ^#*      ”

Note : here leading & End char is space that’s why no trim happen

 

String str=”    *#^ Hello Software Engineers ^#*      ”

string result = str. Trim(‘  ’,‘*’,’#’,’^’);

output : “ Hello Software Engineers ”

Note : here leading & ending char (‘ ’,‘*’,’#’,’^’) are removed , order of params not required

String str=”  *#^ Hello  ^#*   ”
Parameters	Trim	TrimStart	TrimEnd
None	”*#^ Hello  ^#*”	”*#^ Hello  ^#*   ”	”   *#^ Hello  ^#*”
(‘*’)	”  *#^ Hello  ^#*   ”	”  *#^ Hello  ^#*   ”	”  *#^ Hello  ^#*   ”
(‘  ’,‘*’,’#’,’^’);	“Hello”	”Hello  ^#*   ”	”  *#^ Hello”

Key Points

• Whitespace Removal: By default, all three methods remove whitespace characters (spaces, tabs, newlines, etc.).
• Character Removal: You can specify an array of characters to be removed by passing them as arguments to these methods.
• Usage:
• Use Trim when you need to remove characters from both the beginning and end of a string.
• Use TrimStart when you need to remove characters only from the beginning of a string.
• Use TrimEnd when you need to remove characters only from the end of a string.