key value in map javascript code example

Example 1: map in javascript

['elem', 'another', 'name'].map((value, index, originalArray) => { 
  console.log(.....)
});

Example 2: javascript map ket to value

m.set('color', 'red')
m.set('age', 2)

Example 3: key value in map javascript

const map = {"a": 1, "b": 2, "c": 3};
const mapped = Object.entries(map).map(([k,v]) => `${k}_${v}`);
console.log(mapped);