I need help.

Question

I'm learning this and I got stuck.
```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 (function (times5) {
 alert(times5);
})
```

Peter Vann · Accepted Answer

Hi Daniela!
Two issues:
1) You need to multiply each element in the numbers array by 5
2) Then you need to add the new values to the times5 empty array (use the numbers array's push method)
This passes:
```javascript
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 (function (number) {
    times5.push(number*5);  // both steps happen here
});

You can also use an ES6 fat arrow funtion and it still passes:
javascript
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(number => {
    times5.push(number*5);
});
```
More info:
https://www.freecodecamp.org/news/javascript-foreach-how-to-loop-through-an-array-in-js/
https://www.w3schools.com/jsref/jsref_foreach.asp (Here they write the callback function outside the forEach loop.)
So this also passes:
```javascript
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(multiplyBy5andAddToArray);
function multiplyBy5andAddToArray(number) {
    times5.push(number*5);
}
```
I hope that helps!
Stay safe and happy coding!

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Daniela Garcia

Daniela Garcia

I need help.

1 Answer

Peter Vann

Peter Vann

Daniela Garcia

Daniela Garcia