Conditional Operators Shortcuts

Hi,

I found this:

if ((value | 6 | 8 | 10) == (6 | 8 | 10) && value != 0)
{
    size1 = value;
}

In this case, there's no many difference in length of your condition. If you've variables with long names, or if many options are possible, this is a shorter condition.

Alternatively, you can write an extension method[^] for objects:

public static class MultipleOrConditionClass
{
    public static bool MultipleOrCondition(this object obj, params object[] objectsToCompare)
    {
        return objectsToCompare.Contains(obj);
    }
}

Now, use this condition:

if (value.MultipleOrCondition(6, 8, 10))
          {
              size1 = value;
          }

Hope this helps.

No.

But you could use a HashSet

if ( new System.Collections.Generic.HashSet<int> ( new int[] { 6 , 8 , 10 } ).Contains ( value ) )</int>

Though if you did that you should make the HashSet a static readonly field.


I also wonder what you want to do when the value isn't in the set?

Use switch statement

switch (value)
{
   case 6:
   case 8:
   case 10:
     size1 = value;
  break;
}

or if you really want to do this create extension method.

static class Extensions
{
    public static bool In<T>(this T value, params T[] values)
    {
        if (values == null)
            throw new ArgumentNullException("values");

        return values.Contains(value);
    }
}

if(value.In(6,8,10)){
  size1 = value;
}