MAP - CLEAR() METHOD

The clear() Method can be used to remove all the elements from the Map.

Example :

#include <iostream>
#include <map>

using namespace std;

int main() {

    map<string, string> x = 
        {
	        { "Five", "Is a Number" }, 
	        { "John", "Is a Name" }, 
	        { "C++", "Is a Language"}
        };
        
    x.clear();
        
    for (auto i : x)  
    {  
        cout << "The Key is : " << i.first << " and the Value is :"  << i.second << endl;  
    }
    
    return 0;    
}

Output :

So, in the above code we have created a Map using braces {} and Key and Value pairs.

map<string, string> x =
	{
		{ "Five", "Is a Number" },
		{ "John", "Is a Name" },
		{ "C++", "Is a Language"}
	};

And initialised to the variable x.

And we have used the clear() method to remove all the elements from the Map.

x.clear()

And the print statement, prints an empty Map.

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