add to map javascript

var myMap = {};

myMap[newKey] = newValue;

// ...


// Another method

var myMap = new Map()
myMap.set("key0","value")
// ...
myMap.has("key1"); // evaluates to false, assuming key1 wasn't set

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Awgiedawgie 440220 points

                                    const numbers = [0,1,2,3];

console.log(numbers.map((number) => {
  return number;
}));

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Lionel Aguero 33605 points

                                    // Works with Vue Reactive hooks
var myMap = new Map()
myMap.set("key0","value")

5 (1 Votes)
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Awgiedawgie 440220 points

                                    function listFruits() {
  let fruits = ["apple", "cherry", "pear"]
  
  fruits.map((fruit, index) => {
    console.log(index, fruit)
  })
}

listFruits()

// https://jsfiddle.net/tmoreland/16qfpkgb/3/

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0
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