What is the difference between String.Empty and ""

Question

0.00/5 (No votes)

See more:

Hi,

May I know the difference between String.Empty and "", Nowadays we are using both, Which one is better? Please assist me,

Thank you

Posted 1-Aug-14 0:26am

Manikandan MAC

Add a Solution

3 solutions

Solution 2

Difference between String.Empty and ""?[^]

Posted 1-Aug-14 0:34am

Peter Leow

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Thomas Daniels · Accepted Answer · 2014-08-01T00:32:00

In the newer .NET versions, there is not really a difference, and there is no 'better' one. Use the one you prefer:
http://stackoverflow.com/questions/263191/in-c-should-i-use-string-empty-or-string-empty-or[^]
In .NET pre 2.0, "" creates a new object, while String.Empty does not. So if you use .NET pre 2.0, String.Empty is more efficient:
http://stackoverflow.com/questions/151472/what-is-the-difference-between-string-empty-and-empty-string[^]

Pravuprasad · Accepted Answer · 2014-08-01T00:42:00

Solution 3

In .Net pre 2.0, "" creates an object while String.Empty creates no object. So it is more efficient to use String.Empty.

.Length == 0 is the fastest option, but .Empty makes for slightly cleaner code.

In version 2.0 and above of .Net, all occurrences of "" refer to the same string literal.

So "" is pretty equivalent to .Empty, but still not as fast as .Length == 0.

Taken from the following Stack Overflow answer of Brian R. Bondy: http://stackoverflow.com/a/151481[^]

Posted 1-Aug-14 0:42am

Pravuprasad

Updated 1-Aug-14 1:24am

v3

Comments

Manikandan MAC 1-Aug-14 6:49am

Thank you, Could you say some coding tip like that, because it is very useful to build an quality software.

Pravuprasad 1-Aug-14 6:54am

Ask what type of tip you want here, every member will help you?

Thomas Daniels 1-Aug-14 7:24am

I added the source to your answer, because the license that Stack Overflow uses says that copying answers is allowed, but only with attribution.