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int n;
int x[5];
n = sizeof(x)/sizeof(*x);C doesn't have the higher level concept of lists at least as many may understand it, so this completes the prompt using C arrays. sizeof(array) will return the amount of bytes all the elements of the array are taking up and sizeof(var) will return the amount of bytes a single variable is taking up. *x in this example is the same as x[0]; it retrieves the first element of the array, so we're dividing the amount of bytes total for the array by the amount of bytes each element uses.
size_t n = sizeof(x)/sizeof(*x);(def n (count x))size_t n = x.size();x is a std::vector, std::list, std::array, or std::deque.
int n = x.Length;x is an array
int n = x.Count;Works for a List object.
If x is of type IEnumerable, use Count() instead.
If x is of type IEnumerable, use Count() instead.
auto n = x.length;n = walkLength(x);walkLength is a generic solution that works for built-in arrays and containers that implement an input range interface.
int n = x.length;N = length(X).n = size(x)let n = length xvar n = x.length;int n = x.length;x is an array.
val n = x.size(setf n (length x))local n = #x$n = count($x);PHP lacks a native list container, instead it uses a container called an "array" that is actually an ordered map.
n := length(x);x is some type of array.
my $N = @x;
I like to be more explicit, using $N = scalar @x; but some people consider that overly verbose.
$n = scalar @x;This is a recommended way, which ensures that any kind of list is in scalar mode, where only it's size is produced.
n = x.lengthval n = x.size(define n (length x))n := x size.Dim n As Integer = x.CountThe general list interface IList(Of T) inherits its Count property from ICollection(Of T)
n = UBound(x) + 1