Question

How to sort a map by key in descending order with Node.js

Answer 1

function print(mp) {
  for (let [key, value] of mp) {
      console.log(key, value);            
  }
}
 
let mp = new Map([
  ['JavaScript', 4],
  ['TypeScript', 3],
  ['C++',1],
  ['PHP',5],
  ['Node.js', 2],
]);
 
mp = new Map([...mp].sort().reverse());

print(mp);
  
console.log([...mp]);
 
 
   
   
   
   
/*
run:
   
TypeScript 3
PHP 5
Node.js 2
JavaScript 4
C++ 1
[
  [ 'TypeScript', 3 ],
  [ 'PHP', 5 ],
  [ 'Node.js', 2 ],
  [ 'JavaScript', 4 ],
  [ 'C++', 1 ]
]

*/

 

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