Efficient way to remove ALL whitespace from String?

c# removing-whitespace
Corey Ogburn picture Corey Ogburn · Jun 2, 2011 · Viewed 559.6k times · Source

I'm calling a REST API and am receiving an XML response back. It returns a list of a workspace names, and I'm writing a quick IsExistingWorkspace() method. Since all workspaces consist of contiguous characters with no whitespace, I'm assuming the easiest way to find out if a particular workspace is in the list is to remove all whitespace (including newlines) and doing this (XML is the string received from the web request):

XML.Contains("<name>" + workspaceName + "</name>");

I know it's case-sensitive, and I'm relying on that. I just need a way to remove all whitespace in a string efficiently. I know RegEx and LINQ can do it, but I'm open to other ideas. I am mostly just concerned about speed.

Answer

slandau picture slandau · Jun 2, 2011

This is fastest way I know of, even though you said you didn't want to use regular expressions:

Regex.Replace(XML, @"\s+", "")

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