array length c++
#include <iostream>
using namespace std;
#define size(type) ((char *)(&type+1)-(char*)(&type))
int main(){
int arr[5] = {1, 2, 3, 4, 5};
cout << size(arr) / size(arr[0]) << endl; //returns 5
//alternatively
cout << sizeof(arr) / sizeof(int) << endl; //returns 5
}javascript array size
var arr = [10,20,30,40,50]; //An Array is defined with 5 instances
var len= arr.length; //Now arr.length returns 5.Basically, len=5.
console.log(len); //gives 5
console.log(arr.length); //also gives 5javascript size array
let array = [1, 2, 3];
console.log(array.length);Copyright © 2021 Codeinu
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