Question

How to convert a map to JSON in JavaScript

Answer 1

const mp = new Map();
   
mp.set('c', 1);
mp.set('c++', 2);
mp.set('php', 3);
mp.set('java', 4);
mp.set('javascript', 5);
 
const json = JSON.stringify(Object.fromEntries(mp));

console.log(json);
   
   
   
   
/*
run:
 
{"c":1,"c++":2,"php":3,"java":4,"javascript":5}

*/

 

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