30秒学会 C# 片段 – IsContainedIn
Returns true if the elements of the first collection are contained in the second one regardless of o...
Returns true if the elements of the first collection are contained in the second one regardless of o...
Converts a string to title case. Use Regex.Matches() with an appropriate regular expression to break...
Converts a hexadecimal string to a byte array. Use Enumerable.Range() in combination with string.Len...
Returns a Dictionary with the unique values of a collection as keys and their frequencies as the val...
Returns the tail of a collection. Use IEnumerable.Count() to check if the enumerable is non-empty. U...
Returns the human readable format of the given number of seconds. Use TimeSpan.FromSeconds() to conv...
Returns the average of a collection, after mapping each element to a value using the provided functi...
Returns the first element in a collection that matches the given predicate function, match. Use IEnu...
Checks if a string is lower case. Convert the given string to lower case, using string.ToLower() and...
Returns true if the given DateTime is a weekday, false otherwise. Use DateTime.DayOfWeek to check if...