Do I multiply by the totalWidth? Or do I add another variable with the purseInt stating the amount?

Question

```script.js
const width = '190px';
const totalImages = 10;
const totalWidth =  width * totalImages;
const num = 1900;
const webValue = parseInt(1900);
```

Peter Vann · Answer

Hi Alonzo!
Your goal is to multiply the width by totalImages.
width, however, is a CSS string property value, so for the math to work properly you have to cast/convert width to a number ( using parseInt() ).
So the code is actually this simple (and passes)
```javascript
const width = '190px';
const totalImages = 10;
const totalWidth =  parseInt(width) * totalImages;
```
Note: parseInt, in this case, casts/converts '190px' to 190, thus after the multiplication, totalWidth will be 1900.
(190 * 10) == 1900, in other words...
BTW, if you really want to see it, open your devtools and find the console.
At the prompt type:
```
const width = '190px';
```
And hit enter.  It will return undefined, which is fine.
The type:
```
console.log( parseInt(width) );

It will return:
javascript
190
undefined
```
You can ignore the undefineds (undefined is the return value of console.log() regardless of what it logs)
(If you type 2 + 2 at the prompt it will return 4, not undefined).
More info:
https://stackoverflow.com/questions/24342748/why-does-console-log-say-undefined-and-then-the-correct-value
I hope that helps.
Stay safe and happy coding!

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Alonzo Delk

Alonzo Delk

Do I multiply by the totalWidth? Or do I add another variable with the purseInt stating the amount?

1 Answer

Peter Vann

Peter Vann