Array Length
From SwiftAPI
(Redirected from JavaScript Array.length)
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C++
For vectors:
#include <vector> using namespace std; int a0[] = {0, 2, 4, 6, 8}; vector<int> a(a0, a0+5); int n = a.size(); // n == 5
C#
int[] a = new int[] { 0, 2, 4, 6, 8 }; int n = a.Length; // n == 5
Java
For arrays:
int[] a = {0, 2, 4, 6, 8}; int n = a.length; // n == 5
For Lists:
import java.util.Arrays; List<Integer> a = Arrays.asList(0, 2, 4, 6, 8); int n = a.size(); // n == 5
JavaScript
var a = [0, 2, 4, 6, 8]; var n = a.length; // n == 5
Objective-C
@property(readonly) NSUInteger count
NSArray *a = @[@0, @2, @4, @6, @8]; int n = a.count; // n == 5
Perl
@a = (0, 2, 4, 6, 8); $n = @a; # $n == 5
PHP
$a = array(0, 2, 4, 6, 8); $n = count($a); // $n == 5
Python
a = [0, 2, 4, 6, 8] n = len(a) # n == 5
Ruby
array.length => int
a = [0, 2, 4, 6, 8] n = a.length # n == 5
Swift
let a = [0, 2, 4, 6, 8] let n = a.count // n == 5
Visual Basic .NET
Dim a() As Integer = New Integer() {0, 2, 4, 6, 8} Dim n As Integer = a.Length ' n = 5