public void RunDemo()
{
string[] bands = DemoCollections.GetBands();
bool all = bands.All(b => b.Length > 2);
Console.WriteLine(all);
}
public void RunDemo()
{
string[] bands = DemoCollections.GetBands();
IEnumerable <string> orderedOne = bands.OrderBy(band => band.Length);
foreach (string item in orderedOne)
{
//Console.WriteLine(item);
}
IEnumerable <string> orderedTwo = bands.OrderBy(band => band, new ConsonantNumberComparer());
foreach (string item in orderedTwo)
{
//Console.WriteLine(item);
}
IEnumerable <string> orderedThree = bands.OrderBy(band => band, new ConsonantNumberComparer()).ThenBy(band => band);
foreach (string item in orderedThree)
{
//Console.WriteLine(item);
}
IEnumerable <string> ordered = bands.OrderByDescending(band => band, new ConsonantNumberComparer()).ThenByDescending(band => band);
foreach (string item in ordered)
{
Console.WriteLine(item);
}
}
public void RunDemo()
{
string[] bands = DemoCollections.GetBands();
bool exists = bands.Any();
//bool exists = bands.Any(b => b.EndsWith("hkhkj"));
Console.WriteLine(exists);
}
public void RunDemo()
{
string[] bands = DemoCollections.GetBands();
IEnumerable <string> res = bands.Skip(10);
foreach (string item in res)
{
Console.WriteLine(item);
}
}
public void RunDemo()
{
string[] bands = DemoCollections.GetBands();
IEnumerable <string> bandsReversed = bands.Reverse();
foreach (string item in bandsReversed)
{
Console.WriteLine(item);
}
}
public void RunDemo()
{
string[] bands = DemoCollections.GetBands();
IEnumerable <string> selectedItems = bands.Take(5).Concat(bands.Reverse().Take(5));
foreach (string item in selectedItems)
{
Console.WriteLine(item);
}
}
public void RunSelectManyOperatorExample()
{
string[] bands = DemoCollections.GetBands();
IEnumerable <char> characters = bands.SelectMany(b => b.ToArray());
foreach (char item in characters)
{
Console.WriteLine(item);
}
}
public void RunDemo()
{
string[] bands = DemoCollections.GetBands();
string[] bandsTwo = DemoCollections.GetBands();
bool equal = bands.SequenceEqual(bandsTwo);
Console.WriteLine(equal);
IEnumerable <Singer> singers = DemoCollections.GetSingers();
IEnumerable <Singer> singersTwo = DemoCollections.GetSingers();
bool singersEqual = singers.SequenceEqual(singersTwo, new DefaultSingerComparer());
Console.WriteLine(singersEqual);
}
public void RunDemo()
{
string[] bands = DemoCollections.GetBands();
IEnumerable <string> res = bands.SkipWhile(s => s.Length < 10);
foreach (string item in res)
{
//Console.WriteLine(item);
}
IEnumerable <string> res2 = bands.SkipWhile((s, i) => s.Length < 10 && i < 10);
foreach (string item in res2)
{
Console.WriteLine(item);
}
}
public void RunDemo()
{
string[] bands = DemoCollections.GetBands();
IEnumerable <string> res = bands.TakeWhile(b => b[0] != 'E');
foreach (string s in res)
{
//Console.WriteLine(s);
}
IEnumerable <string> res2 = bands.TakeWhile((b, i) => b[0] != 'E' && i < 8);
foreach (string s in res2)
{
Console.WriteLine(s);
}
}
public void RunTakeDemo()
{
string[] bands = DemoCollections.GetBands();
IEnumerable <String> topItems = bands.Take(10);
foreach (string item in topItems)
{
//Console.WriteLine(item);
}
var anonymous = bands.Take(10).Select(b => new { Name = b, Length = b.Length });
foreach (var anon in anonymous)
{
Console.WriteLine("Band name: {0}, length: {1}", anon.Name, anon.Length);
}
}
public void RunDemo()
{
string[] bands = DemoCollections.GetBands();
IEnumerable <string> bandsDuplicated = bands.Concat(bands);
IEnumerable <string> uniqueBands = bandsDuplicated.Distinct();
foreach (String unique in uniqueBands)
{
Console.WriteLine(unique);
}
IEnumerable <Singer> singers = DemoCollections.GetSingers();
IEnumerable <Singer> singersDuplicates = singers.Concat(singers);
IEnumerable <Singer> uniqueSingers = singersDuplicates.Distinct(new DefaultSingerComparer());
foreach (Singer singer in uniqueSingers)
{
Console.WriteLine(singer.Id);
}
}
public void RunSelectOperatorExample()
{
string[] bands = DemoCollections.GetBands();
IEnumerable <int> lengths = bands.Select(b => b.Length);
foreach (int l in lengths)
{
Console.WriteLine(l);
}
var customObjects = bands.Select(b => new { Name = b, Length = b.Length });
foreach (var item in customObjects)
{
Console.WriteLine("Band name: {0}, length: {1}", item.Name, item.Length);
}
IEnumerable <Band> bandListSimple = bands.Select(b => new Band()
{
AllCapitals = b.ToUpper(), Name = b, NameLength = b.Length
});
foreach (Band band in bandListSimple)
{
Console.WriteLine(string.Concat(band.Name, ", ", band.NameLength, ", ", band.AllCapitals));
}
IEnumerable <Band> bandList = bands.Select((b, i) => new Band()
{
AllCapitals = b.ToUpper(), BandIndex = i + 1, Name = b, NameLength = b.Length
});
foreach (Band band in bandList)
{
Console.WriteLine(string.Concat(band.BandIndex, ": ", band.Name, ", ", band.NameLength, ", ", band.AllCapitals));
}
}
