Quickest way to enumerate the alphabet
C#AlphabetC# Problem Overview
I want to iterate over the alphabet like so:
foreach(char c in alphabet)
{
//do something with letter
}
Is an array of chars the best way to do this? (feels hacky)
Edit: The metric is "least typing to implement whilst still being readable and robust"
C# Solutions
Solution 1 - C#
(Assumes ASCII, etc)
for (char c = 'A'; c <= 'Z'; c++)
{
//do something with letter
}
Alternatively, you could split it out to a provider and use an iterator (if you're planning on supporting internationalisation):
public class EnglishAlphabetProvider : IAlphabetProvider
{
public IEnumerable<char> GetAlphabet()
{
for (char c = 'A'; c <= 'Z'; c++)
{
yield return c;
}
}
}
IAlphabetProvider provider = new EnglishAlphabetProvider();
foreach (char c in provider.GetAlphabet())
{
//do something with letter
}
Solution 2 - C#
Or you could do,
string alphabet = "abcdefghijklmnopqrstuvwxyz";
foreach(char c in alphabet)
{
//do something with letter
}
Solution 3 - C#
var alphabet = Enumerable.Range(0, 26).Select(i => Convert.ToChar('A' + i));
Solution 4 - C#
Enumerable.Range(65, 26).Select(a => new { A = (char)(a) }).ToList().ForEach(c => Console.WriteLine(c.A));
Solution 5 - C#
Use Enumerable.Range
:
Enumerable.Range('A', ('Z' - 'A' + 1)).Select(i => (char)i)
Solution 6 - C#
You could do this:
for(int i = 65; i <= 95; i++)
{
//use System.Convert.ToChar() f.e. here
doSomethingWithTheChar(Convert.ToChar(i));
}
Though, not the best way either. Maybe we could help better if we would know the reason for this.
Solution 7 - C#
I found this:
foreach(char letter in Enumerable.Range(65, 26).ToList().ConvertAll(delegate(int value) { return (char)value; }))
{
//breakpoint here to confirm
}
while randomly reading this blog, and thought it was an interesting way to accomplish the task.