Regular Expression Consecutive duplicate words (#2032)

* Create script.js

* Create README.md

Author: sumanthdosapati

Specialized Areas/Regular Expressions/Consecutive duplicate words/README.md

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+# Consecutive duplicate words
+
+**Overview** - This Regex can be used to find any two consecutive duplicate words. This can be mainly used in client scripts that validates naming conventions.

Specialized Areas/Regular Expressions/Consecutive duplicate words/script.js

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+// Consecutive Duplicate Words Detector
+// This regex finds repeated words that appear consecutively, such as "the the" or "and and".
+// Useful for grammar or text quality checks.
+
+const duplicateWordsRegex = /\b([A-Za-z]+)\s+\1\b/gi;
+
+function hasDuplicateWords(text) {
+  return duplicateWordsRegex.test(text);
+}
+
+// Example usage:
+console.log(hasDuplicateWords("This is the the example.")); // true
+console.log(hasDuplicateWords("We need to to check this.")); // true
+console.log(hasDuplicateWords("Everything looks good here.")); // false
+console.log(hasDuplicateWords("Hello hello world.")); // true (case-insensitive)
+console.log(hasDuplicateWords("No repetition found.")); // false