Pls help me in this question how do i get to increase the prices on the array.

Question

You are working on a Store Manager program, which stores the prices in an array.
You need to add functionality to increase the prices by the given amount.
The increase variable is taken from user input. You need to increase all the prices in the given array by that amount and output to the console the resulting array.

Answer 1

You need to increase each price from array, so in your for loop you can do
console.log(prices[i] + increase)
// 98.99 + input, for first index and so on

you need to take value from price array, but you loging index and [0] - this [0] will probably give some error in console

you can also use map method - es6

prices.map((price) => {
console.log(price + increase);
})
much cleaner than for loop

Here is more about map:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map

Answer 2

What you mean by doubles?

Map is very similar as forEach, you can see diference here, also you can see how both are used, what is faster....

https://codeburst.io/javascript-map-vs-foreach-f38111822c0f

Answer 3

function main() {
var increase = parseInt(readLine(), 10);
var prices = [98.99, 15.2, 20, 1026];
//your code goes here

let newPrice = [];

for ( i = 0; i < prices.length; i++ ) {
let priceIncrease = prices[i] + increase;
newPrice.push(priceIncrease);
}

console.log(newPrice);
}

I searched online, put pieces of code together and got this, it worked for me.

Answer 4

function main() {
var increase = parseInt(readLine(), 10);
var prices = [98.99, 15.2, 20, 1026];
//your code goes here

}

//This is the code

Answer 5

function main() {
var increase = parseInt(readLine(), 10);
var prices = [98.99, 15.2, 20, 1026];
//your code goes here

for (let i = 0; i < prices.length; i++){
console.log(i, [0])
}
}

//this is my own solving pls tell me where am not right thanks

Answer 6

Thanks alot!

Answer 7

Ok the map method prints out in doubles while forEach prints singles just like the for loop. i think?