C++ map key exists

if ( !(myMap.find("key") == myMap.end()) ) {	// "key" exists	
  
} else {	// not found	
  
}

C++ map key exists

#include <iostream>
#include <map>

using std::cout; using std::cin;
using std::endl; using std::map;
using std::string;

int main(){
    string key_to_find;
    std::map<string, string> lang_map = {{"j", "Julia",},
                                         {"p", "Python",},
                                         {"m", "MATLAB",},
                                         {"o", "Octave",},
                                         {"s", "Scala",},
                                         {"l", "Lua",}};

    for (const auto & [key, value] : lang_map) {
        cout << key << " : " << value << endl;
    }

    cout << "Enter the key to search for: ";
    cin >> key_to_find;

    if (lang_map.find(key_to_find) != lang_map.end()) {
        cout << "Key Exists!" << endl;
    }

    return EXIT_SUCCESS;
}

Source: delftstack.com

Similar codes

0 vote171 views2 answers
Use pipe in ts file angulr
TypeScript
0 vote157 views1 answer
You can initiate objects from a
TypeScript
5 votes159 views4 answers
React native select
TypeScript
1 vote155 views2 answers
Convert list elements to uppercase python
TypeScript
1 vote163 views1 answer
React beautiful dnd disable drag
TypeScript
1 vote161 views1 answer
Vue textarea autosize
TypeScript
0 vote154 views1 answer
On input inset - afetr 5 digits jquery
TypeScript
0 vote169 views1 answer
When new item added in array its not refreshing the list in ember
TypeScript
0 vote166 views1 answer
SetTimeout without arguments
TypeScript
1 vote171 views2 answers
Distance subplots matplotlib
TypeScript