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Simplify an array

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Posted on by NewName896452

I'm trying to create an array without the object labels (I believe that's what they're called). The goal is to also remove any null objects but I believe I can use the select function to remove that.

To explain it in more simple terms...

The current output that I want to fix is this:
[
{
"Keyword": "Keyword1"
},
{
"Keyword": "Keyword3"
},
{
"Keyword": "Keyword5"
},
{
"Keyword": "Keyword6"
},
{
"Keyword": "Keyword2"
},
{
"Keyword": "Keyword4"
},
{
"Keyword": null
},
{
"Keyword": "Keyword7"
},
{
"Keyword": "Keyword8"
},
{
"Keyword": "Keyword9"
}
]

What I want that array to look like is this:

[
"keyword1",
"keyword3",
"keyword5",
"keyword6",
"keyword2",
"keyword4",
"keyword7",
"keyword8",
"keyword9"
]

This is the output in a Compose action. Which is honestly taking the inputs of another compose that used the Union expression to remove duplicates.

Does anyone have any thoughts on how I can remove the curly brackets and the "keyword" label in front of what will have real keywords?

Categories:

Building flows

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Ellis Karim 11,681 Super User 2025 Season 2 on at

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Hi @NewName896452 ,

(1) This is your sample data:

(2) Use the Select action in key-value mode:

and enter the data and values as shown:

The Select action produces the following array:

[ "Keyword1", "Keyword3", "Keyword5", "Keyword6", "Keyword2", "Keyword4", null, "Keyword7", "Keyword8", "Keyword9" ]

(3) Remove duplicates using the expression:
union(body('Select'),body('Select'))

(4) Finally remove the null values using the Filter Array action:

This is the output of the filter array action:

Ellis
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NewName896452 34 on at

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@ekarim2020 When I used the Initialize Variable (per your direction), I couldn't get it to work quite right so I decided to provide more context.

Overall Concept/Goal:
We have a SharePoint library that we're using as a wiki library. The SharePoint library list has "single line of text" columns that are designated for keywords about the topic of the wiki. The idea is if someone in a specific group MS Teams chat uses certain trigger words that seem like they're asking a question (know, how, where, what), the Automate flow will scan the body of their Teams message and compare it to the let of keywords.

If a common keyword is found, I want to create an adaptive card to respond to them in teams with a link to the suggested wiki.

Logistics of the Flow:
So, an array of keywords originates from multiple columns from multiple items. I don't know enough about arrays to figure out how to merge the columns from the multiple items down into one clean array so it can be compared to the array that I successfully created from Teams. I'm sure I could be going about this entire process wrong, but I hope that helps with the data that I'm trying to convert and why.

SharePoint Library (the source of keywords)

This shows the message in Teams at the top and how my end result looks by removing special characters and creating an array of those words in the message.

This is the flow itself if you want to look at it more closely.

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NewName896452 34 on at

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@ekarim2020 I've attached what the flow looks like when executed here. I hope all of this helps and isn't too much of a burden for you to help. Thank you for responding to this thread to begin with. I truly appreciate any help I can get.

4 - Flow_executed...

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