javascript map
function listFruits() {
let fruits = ["apple", "cherry", "pear"]
fruits.map((fruit, index) => {
console.log(index, fruit)
})
}
listFruits()
// https://jsfiddle.net/tmoreland/16qfpkgb/3/javascript map
function listFruits() {
let fruits = ["apple", "cherry", "pear"]
fruits.map((fruit, index) => {
console.log(index, fruit)
})
}
listFruits()
// https://jsfiddle.net/tmoreland/16qfpkgb/3/How does map works in javascript?
const products = [
{ name: 'Laptop', price: 32000, brand: 'Lenovo', color: 'Silver' },
{ name: 'Phone', price: 700, brand: 'Iphone', color: 'Golden' },
{ name: 'Watch', price: 3000, brand: 'Casio', color: 'Yellow' },
{ name: 'Aunglass', price: 300, brand: 'Ribon', color: 'Blue' },
{ name: 'Camera', price: 9000, brand: 'Lenovo', color: 'Gray' },
];
const productName = products.map(product => product.name);
console.log(productName);
//Expected output:[ 'Laptop', 'Phone', 'Watch', 'Aunglass', 'Camera' ]how to use the map method in javascript
const numbers = [1, 2, 3, 4, 5];
const bigNumbers = numbers.map(number => {
return number * 10;
});map in javascript
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"map in javascript
['elem', 'another', 'name'].map((value, index, originalArray) => {
console.log(.....)
});Copyright © 2021 Codeinu
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