Error while filtering and multiplication of numbers from the list

Hi, I have two problems. I wanted to filter out items that are empty but after filtering it only shows me the first item in the list.
How can I multiply a number from a given list?
For example:
5 ​​* 3
1 * 2
and
2 * 7

Hello @ @seba11 …Could something here help?

2 Likes

Change the List Lacing and you should get the remaining items.

There are a few things going on with your filtering.

1. An empty or blank space is not the same as 0.
2. ‘0’ is a string not a number.
3. `x=='0'` is a condition. With no value assigned to `x`, the value is `null`, making the condition `null=='0'`. This of course returns `false`.
4. You’re now providing one `false` boolean as the mask to filter items, which is masking only the first item in your list.
5. You need to check each item against the condition and provide a list of booleans matching the list of filtered items.

What you have:

What you want:

From there you can multiply the filtered values by whatever you want.

2 Likes

Could you explain why it doesn’t work?

As explained above, a blank or empty value is not the same as 0. You’ll get a null value when attempting any mathematical operation on it.

You would have to convert those empties to 0s first.

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