Creating a new array containing only items from the original array that had values

How To
,
1

Hi,

I’m trying to find the best way of creating a new array containing only items from the original array that actually had a value.

[
    {
        "array": [
            {
                "value": "Heat Different"
            },
            {
                "value": "Europa Way"
            },
            {
                "value": ""
            },
            {
                "value": "Norwich"
            },
            {
                "value": "Norfolk"
            }
        ],
        "__IMTAGGLENGTH__": 5
    }
]

Thanks in advance for the help.

2

Hello @Alan_Heat,
Probably the most straightforward way to do this is a combination of map() and remove() function on that array.

image

Result:
image

map() will pull the value from each collection where the key is “value” and put them into a simple array. This array includes the element without any value.
remove() will remove any elements that have no value, leaving you with the result above.

Hope that helps!

3 Likes
3

Bingo! @Alan_Heat I cover this very example in Part 8 of my Make for Make Newbies video series. You’ll find a ton of useful examples on array mangement and general data structure management throughout that series. I recommend it, if I do say so myself :slight_smile:

I use the {{null}} operator instead of {{emptystring}} but I am not sure it matters either way when array values are concerned.

2 Likes
4

Hi @alex.newpath,

Thanks for this, i’ll check it out.

1 Like