js map size code example

Example 1: js map size

const map1 = new Map();

map1.set('a', 'alpha');
map1.set('b', 'beta');
map1.set('g', 'gamma');

console.log(map1.size);
// expected output: 3

Example 2: size of map with no elements

#include 
#include 
#include 

using namespace std;

int main(void)
{
    map m;
    cout << m.size();
}

//Output: 0

Tags:

Misc Example

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