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JavaScript JavaScript Quickstart Arrays and Loops Create a forEach Loop

Posted by Dionte Barnes
Dionte Barnes
10,140 Points

Using forEach, iterate over the numbers array and multiply each number by 5, storing these new numbers in the times5 arr

I'm confused, can you please help?

app.js 
const numbers = [1,2,3,4,5,6,7,8,9,10];
let times5 = [];

// times5 should be: [5,10,15,20,25,30,35,40,45,50]
// Write your code below
numbers.forEach(
Dionte Barnes
Dionte Barnes
10,140 Points

OK Thanx for your support!

2 Answers

Kendell Dancy
Kendell Dancy
15,158 Points
Kendell Dancy
Kendell Dancy
15,158 Points

The forEach() method executes a function once for each array element.

We want to take the numbers array and multiply each element in that array by 5.

While also pushing the value to times5 array

numbers.forEach(function(number){
    times5.push(number * 5);
});
Mike Hatch
Mike Hatch
14,940 Points
Mike Hatch
Mike Hatch
14,940 Points

Just to add to what Kendell said, think of it as passing a function in as an argument to numbers. To see the output: console.log(times5).

Oskar Brännström
Oskar Brännström
7,511 Points
Oskar Brännström
Oskar Brännström
7,511 Points

You could also write it like this : 

numbers.forEach(number => times5.push(number * 5));
Sue Menon
Sue Menon
1,119 Points
Sue Menon
Sue Menon
1,119 Points

Thanks Oskar! Your example helped me because that was the format they used in the video.

David Ryan
David Ryan
Courses Plus Student 14,981 Points

Could you just do that like this: 

numbers.forEach(function(number) {
     times5 = number * 5;
});