How to Replace Multiple Spaces with a Single Space in C#?

Replace multiple spaces with a single space in C#

In C# text processing, replacing multiple spaces with a single space is a common task. This operation can be used for formatting, data cleaning, or ensuring the consistency of text strings.

You can use the Regex.Replace method to replace multiple spaces with a single space. This method allows you to perform regular expression-based string replacement. The following line of code demonstrates how to replace multiple spaces with a single space:

<code class="language-csharp">myString = Regex.Replace(myString, @"\s+", " ");</code>

Here, @"s " is a regular expression pattern that matches one or more white space characters (including space, tab, and newline characters). The replacement string is just a space.

Example:

Consider the following input string:

<code>1 2 3  4    5</code>

After applying the replacement, the string will become:

<code>1 2 3 4 5</code>

Bonus Tips:

If you need to handle other character sequences besides spaces, you can modify the regex accordingly. For example, to replace multiple underscores with a single underscore, you can use the following pattern:

<code class="language-csharp">myString = Regex.Replace(myString, @"_+", "_");</code>

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