Инициализировать карту JS
let map = new Map()
map['bla'] = 'blaa'
map['bla2'] = 'blaaa2'
console.log(map) // Map { bla: 'blaa', bla2: 'blaaa2' }
PSK1103
let map = new Map()
map['bla'] = 'blaa'
map['bla2'] = 'blaaa2'
console.log(map) // Map { bla: 'blaa', bla2: 'blaaa2' }
//map() methods returns a new array
const data = {name: "laptop", brands: ["dell", "acer", "asus"]}
let inside_data = data.brands.map((i) => {
console.log(i); //dell acer asus
});['elem', 'another', 'name'].map((value, index, originalArray) => {
console.log(.....)
});let myMap = new Map()
let keyString = 'a string'
let keyObj = {}
// setting the values
myMap.set(keyString, "value associated with 'a string'")
myMap.set(keyObj, 'value associated with keyObj')
myMap.set(keyFunc, 'value associated with keyFunc')
myMap.size // 3
// getting the values
myMap.get(keyString) // "value associated with 'a string'"
myMap.get(keyObj) // "value associated with keyObj"
myMap.get(keyFunc) // "value associated with keyFunc"fruits.get("apples"); // Returns 500