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

2 votes280 views2 answers
Props vue typescript
TypeScript
15 votes257 views2 answers
Angular number pipe
TypeScript
1 vote227 views2 answers
Github django projects
TypeScript
1 vote242 views1 answer
Type 'CameraOriginal' is not assignable to type 'Provider'.
TypeScript
0 vote261 views1 answer
Typescript equals string
TypeScript
0 vote272 views1 answer
How to take inputs in one line in c
TypeScript
2 votes275 views1 answer
Python remove folder recursively
TypeScript
0 vote262 views3 answers
Number to string typescript
TypeScript
-1 vote254 views1 answer
How to clear all the dropdown elements in jquery
TypeScript
0 vote260 views1 answer
Exposants python
TypeScript