![]() ![]() Finally, we join the distinct words back into a string using the string.Join() method, again using a space character as the separator.Next, we use the Distinct() method to remove duplicates from the array of words.Then, we use the Split() method to split the input string into an array of words, using a space character as the separator.First, we define a string variable input with the input string that we want to remove duplicates from.String output = string.Join(" ", distinctWords) String distinctWords = words.Distinct().ToArray() Here's an example: string input = "C# Corner is a popular online community popular online community" Finally, we replace the duplicate word with just the first occurrence of the word ($1) using the regular expression replacement syntax.Īnother way to remove duplicate words from a string in C# is to use the Split() method to split the string into an array of words, then use the Distinct() method to remove duplicates, and finally join the array back into a string.The \b at the beginning and end ensure that the match is a whole word, not just a part of a larger word. The regular expression \b(\w+)\s+\1\b matches any word character (\w+) that is followed by one or more whitespace characters (\s+) and then the same word again (\1).Next, we use the Regex.Replace() method to match and replace duplicate words in the input string.Then, we define a string variable input with the input string that we want to remove duplicates from.First, we import the namespace to use regular expressions.String output = Regex.Replace(input, "$1") String input = "C# Corner is a popular online online community" We can use regular expressions to match and remove duplicate words from a string in C#. Regular expressions are a powerful tool for pattern matching in strings. Methods to remove duplicate words from a string In this article, we will explore all possible methods to remove duplicate words from a string in C# with examples and explanations. Fortunately, there are several ways to accomplish this task in C#. For instance, you may want to remove duplicate words from a user's input in a search bar to ensure more accurate search results. Removing duplicate words from a string in C# is a common programming task that can be useful in many scenarios.
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