js - Maps

can write key-value pair with the help of map

const myMap = new Map()

const key1 = 'mystr1' , key2 = {} , key3 = function(){}

// Setting map values

myMap.set(key1,'this is string')

myMap.set(key2,'this is blank object')

myMap.set(key3,'this is an empty function')

// console.log(myMap);

// getting value from the map

let value1 = myMap.get(key1)

let value2 = myMap.get(key2);

let value3 = myMap.get(key3);

// console.log(value1);

// console.log(value2);

// console.log(value3);

// get the size of the map

// console.log(myMap.size);

// you can use for..of  to get keys and value

// for(let [key,value] of myMap){

//     console.log(`key : ${key} , value : ${value}`);

// }

// // get only keys

// for(let key of myMap){

//     console.log(`key is : ${key}`);

// }

// // get only values

// for(let value of myMap){

//     console.log(`value is : ${value}`);

// }

// looping map using foreach loop

// myMap.forEach((value,key) => {

//     console.log(`key : ${key} , value : ${value}`);

    

// });

// converting map to array

let myArray = Array.from(myMap)

console.log("ARRY", myArray);

let myKeyArray = Array.from(myMap.keys());

console.log("ARRY", myKeyArray);

let myValueArray = Array.from(myMap.values());

console.log("ARRY", myValueArray);