taken a string example as 550e8400-e29b-41d4-a716-446655440000
how can one count how many -
chars are in such string?
I'm currently using:
int total = "550e8400-e29b-41d4-a716-446655440000".Split('-').Length + 1;
Is there any method that we don't need to add 1... like using the Count
maybe?
All other methods such as
Contains
IndexOf
etc only return the first position and a boolean
value, nothing returns how many were found.
what am I missing?
You can use the LINQ method Enumerable.Count
for this purpose (note that a string
is an IEnumerable<char>
):
int numberOfHyphens = text.Count(c => c == '-');
The argument is a Func<char, bool>
, a predicate that specifies when an item is deemed to have 'passed' the filter.
This is (loosely speaking) equivalent to:
int numberOfHyphens = 0;
foreach (char c in text)
{
if (c == '-') numberOfHyphens++;
}
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