Added is_kebab_case utility in string class

Author: Suryapratap Singh Suryavanshi

strings/is_kebab_case.py

@@ -0,0 +1,37 @@
+"""
+CheckKebabCase method checks the given string is in kebab-case or not.
+Problem Source & Explanation: https://en.wikipedia.org/wiki/Naming_convention_(programming)
+"""
+
+import re
+
+
+def is_kebab_case(var_name: str) -> bool:
+    """
+    CheckKebabCase method checks the given string is in kebab-case or not.
+    Problem Source & Explanation: https://en.wikipedia.org/wiki/Naming_convention_(programming)
+    >>> is_kebab_case('variable-name')
+    True
+    >>> is_kebab_case('VariableName')
+    False
+    >>> is_kebab_case('variable_name')
+    False
+    >>> is_kebab_case('variableName')
+    False
+    """
+
+    if not isinstance(var_name, str):
+        raise TypeError("Argument is not a string.")
+
+    pat = r"(\w+)-(\w)([\w-]*)"
+    return bool(re.match(pat, var_name)) and "_" not in var_name
+
+
+if __name__ == "__main__":
+    from doctest import testmod
+
+    testmod()
+    input_var = input("Enter the variable name: ").strip()
+
+    status = is_kebab_case(input_var)
+    print(f"{input_var} is {'in ' if status else 'not in '}kebab-case.")