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“Convenient Unicode tables are available on Wikipedia.” The cool thing is that I can also specify Unicode in my array of characters. The command and its associated output are shown in the image that follows: I use an array consisting of “a”, “ “ and it removes both ends of the string. Here is an example in which I have a string that begins with “a “ and ends with “ a”. This permits me to specify an array of characters to remove from both ends of the string. If there are specific characters I need to remove from both ends of a string, I can use the Trim(char) method. The command and the associated output from the command are shown in the following image: I then obtain the length of the string a second time. This time, I obtain the length of the string before I trim it, and I save the resulting string following the trim operation back into a variable. Unfortunately, the previous output is a bit hard to understand, so let me try a different approach. I just call Trim() on any string, and it will clean it up. It easily removes all white space characters from the beginning and from the end of a string. It is very useful, and it is the method I use most. The easiest Trim method to use is the Trim() method. Trim white space from both ends of a string Removes all leading occurrences of a set of characters specified in an array from the current String object. Removes all trailing occurrences of a set of characters specified in an array from the current String object. Removes all leading and trailing occurrences of a set of characters specified in an array from the current String object. Removes all leading and trailing white-space characters from the current String object. NET Framework class (which is documented on MSDN) has four Trim methods that enable me to easily cleanup strings by removing unwanted characters and white space.
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Luckily, by using Windows PowerShell and a few String methods, I can easily correct this situation. One of the problems with “raw data” is that it may include stuff like leading spaces or trailing spaces that can affect sort and search routines. It does not matter if the persisted storage is Active Directory, SQL Server, or a simple CSV file. One of the most fundamental rules for working with data is “garbage in, garbage out.” This means it is important to groom data before persisting it. Join Me in a Few String Methods Using PowerShell.Keep Your Hands Clean: Use PowerShell to Glue Strings Together.
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Note This post is the last in a series about strings. The city is beautiful, and the people were really friendly. Teresa and I were in Amsterdam earlier this year. This will be an awesome event, and it will be a great chance to meet other PowerShellers. The event will be held Sept 29 – in Amsterdam in The Netherlands.
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Speaking of the Scripting Wife’s passions, registration is open now for the Windows PowerShell Summit in Europe. But I will have the chance to see at least one day of the events. Unfortunately, I will not get to attend much of that event due to a week of training that my group is doing. The Scripting Wife heads out today to spend time with her other passion at the Blue Ridge Classic Horse Show. Microsoft Scripting Guy, Ed Wilson, is here. Summary : Microsoft Scripting Guy, Ed Wilson, talks about using Windows PowerShell to trim strings and clean up data.
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