JAVASCRIPT: Store Manager

Question

In JavaScript course, under Core Objects > 44 Code Project.

You need to write a store manager program wherein you need to increase the price (in an array) depending on user's input.

So the user's input will increase each price in that array. I could say that I was able to get the logic behind it but the problem is, it is actually different to the expected output.

Here's my program below:

function main() {
var increase = parseInt(readLine(), 10);
var prices = [98.99, 15.2, 20, 1026];
//your code goes here
for (var i = 0; i < prices.length; i++) {
console.log(prices[i] + increase);
}
}

Sample User Input: 9

My Output:
107.99
24.2
29
1035

Expected Output: [ 107.99, 24.2, 29, 1035 ]

I can't seem to display it in a single line.

Answer 1

Rolly U. Valdemoro Jr.

Don't print each value just increase price and finally print array prices

for (var p in prices) {
prices[p] = prices[p] + increase;
}

console.log(prices);

Answer 2

Same solution, but using while loop

function main() {
var increase = parseInt(readLine(), 10);
var prices = [98.99, 15.2, 20, 1026];
//your code goes here
var x=0
while (x<prices.length) {
prices[x] += increase
x++
}
console.log(prices)
}

Answer 3

Hello, this is my solution for this exercise:
function main() {
var temp;
var increase = parseInt(readLine(), 10);
var prices = [98.99, 15.2, 20, 1026];
for(i=0;i<prices.length;i++){
temp=prices[i];
temp+=increase;
prices[i]=temp;
}
console.log(prices);

}

Answer 4

Rolly U. Valdemoro Jr. Hi Rolly, you need to store the values of incremented price to the price variable & then console log it out of the loop.

So, it would be price = price[i] + increase

& then console.log price out of the for loop

Answer 5

for (x = 0; x < prices.length; x++) {
prices[x] += increase;
}
console.log(prices);

Answer 6

// here is the simplest answer :

// I hope you can understand easily , if you not just let me know

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

const newPrices = prices.map(num => num + increase);

console.log(newPrices);

}

Answer 7

for ( let p = 0; p < prices.length; p++) {
prices[p] = prices[p] + increase;
}

console.log(prices);

Answer 8

Thanks for the help, my bad. So I just have to store it in the variable first and the console log should be outside my for loop.

I have the correct output now, I appreciate all the help.

Regards,
Rolly

Answer 9

Hello. Here is my solution.

function main() {
var increase = parseInt(readLine(), 10);
var prices = [98.99, 15.2, 20, 1026];
//your code goes here
var sum = [];
for(i = 0; i<prices.length; i++) {
sum[i] = (prices[i] + increase);
}
console.log(sum)
}