Start the day with a tall (at least 500 ml) glass of water as soon as you wake up. Imagine going an entire work day without drinking. Your body does the equivalent of this every night when you sleep. Many Canadians are starting the day dehydrated, which leads to fatigue very early on in the day., she says.
IEnumerable and IEnumerator. When using C# with the .NET framework version 1.1, you can create classes that behave like collections or arrays. If you wish to use the foreach loop structure to iterate through the values in your class, you must implement the IEnumerable interface. This interface contains a single method, named GetEnumerator, which returns an enumerator object.
3) R is a functional language, the result of that is the flow control and programming is somewhat de-emphasized. Many R natives would prefer that you use the apply family of functions rather than writing a for-loop (often possible, but not always). Adding a layer of vitriol to this preference for the apply command is the rumor (left over from the S language from which R was derived) that apply is faster than a for-loop.