How can I Trim the leading comma in my string.

Question

I have a string that is like below.

,liger, unicorn, snipe

in other languages I'm familiar with I can just do a string.trim(",") but how can I do that in c#?

Thanks.

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There's been a lot of back and forth about the StartTrim function. As several have pointed out, the StartTrim doesn't affect the primary variable. However, given the construction of the data vs the question, I'm torn as to which answer to accept. True the question only wants the first character trimmed off not the last (if anny), however, there would never be a "," at the end of the data. So, with that said, I'm going to accept the first answer that that said to use StartTrim assigned to a new variable.

Answer 1

if (s.StartsWith(",")) {
    s = s.Substring(1, s.Length - 1);
}

Answer 2

   string s = ",liger, unicorn, snipe";
   s.TrimStart(',');

Answer 3

string t = ",liger, unicorn, snipe".TrimStart(new char[] {','});

Answer 4

The same way as everywhere else: string.trim

Answer 5

string s = ",liger, tiger";

    if (s.Substring(0, 1) == ",")
        s = s.Substring(1);

Answer 6

Did you mean trim all instances of "," in that string?

In which case, you can do:

s = s.Replace(",", "");

Answer 7

",liger, unicorn, snipe".Trim(',') -> "liger, unicor, snipe"

Answer 8

Try string.Trim(',') and see if that does what you want.

Answer 9

Just use Substring to ignore the first character (or assign it to another string);

 string o = ",liger, unicorn, snipe";
 string s = o.Substring(1);

Answer 10

.net strings can do Trim() and TrimStart(). Because it takes params, you can write:

",liger, unicorn, snipe".TrimStart(',')

and if you have more than one character to trim, you can write:

",liger, unicorn, snipe".TrimStart(",; ".ToCharArray())

Answer 11

See: http://msdn.microsoft.com/en-us/library/d4tt83f9.aspx

        string animals = ",liger, unicorn, snipe";

        //trimmed will contain "liger, unicorn, snipe"
        string trimmed = word.Trim(',');

Answer 12

string sample = ",liger, unicorn, snipe";
sample = sample.TrimStart(','); // to remove just the first comma

Or perhaps:

sample = sample.Trim().TrimStart(','); // to remove any whitespace and then the first comma

Answer 13

Note, the original string is left untouched, Trim will return you a new string:

string s1 = ",abc,d";
string s2 = s1.TrimStart(",".ToCharArray());
Console.WriteLine("s1 = {0}", s1);
Console.WriteLine("s2 = {0}", s2);

prints:

s1 = ,abc,d
s2 = abc,d

Answer 14

here is an easy way to not produce the leading comma to begin with:

string[] animals = { "liger", "unicorn", "snipe" };
string joined = string.Join(", ", animals);

Answer 15

string s = ",liger, unicorn, snipe"; s = s.TrimStart(',');

It's important to assign the result of TrimStart to a variable. As it says on the TrimStart page, "This method does not modify the value of the current instance. Instead, it returns a new string...".

In .NET, strings don't change.

Answer 16

",liger, unicorn, snipe".TrimStart(',');

Answer 17

string.TrimStart(',') will remove the comma, however you will have trouble with a split operation due to the space after the comma. Best to join just on the single comma or use

Split(", ".ToCharArray(),StringSplitOptions.RemoveEmptyEntries);