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surfer1978
Helper I
Helper I

Remove an element from an array in flow

Hello


I have an array that looks like this called array 1

 

[
    {
    "claims":"user1"
    },

    {
    "claims":"user2"
    },
    
    {
    "claims":"user3"
    }
]

 

I have a separate array variable called array 2 with the following 

 

[
    {
    "claims":"user2"
    }
]

I would like to compare the array 2 with array 1 to see if 'user 2' is in that array 1, if they are, I would like to remove them from that array 

 

Thanks for your help!

8 REPLIES 8
RezaDorrani
Community Champion
Community Champion

Hi @surfer1978 

 

Intersection function between the 2 arrays will give you results if there is  match

so do intersection of both arrays and then check length of output

if length is 1 - then item exists in array

 

Next for removing item

Use filter action on array 1 (whih is your main array)

 

and filter if 

item()?['claims'] 

is not equals to

dynamiccontentarray2?[0]?['claims'] 

 

Regards,

Reza Dorrani

 

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly

edgonzales
Most Valuable Professional
Most Valuable Professional

@surfer1978 

Hi there!  Will Array 2 only ever have one value?  If so, I wonder if you could set it to a string, then do a step to build a new Array (1A?) with each line that does not equal the string in #2?

I think leaving #2 as an array will get weird because of the many to many potential...that's why I asked.

 

Keep us posted.

-Ed-

 

 

If this reply has answered your question or resolved your challenge, please consider marking it as a Solution. This helps other users find it more easily via search.

In the same example provided I just want to remove "Claims" keyword or element in the output.. what should be done for that ?

dee2005
Advocate III
Advocate III

@edgonzales , how would you build the new array to exclude the text?

edgonzales
Most Valuable Professional
Most Valuable Professional

Hi there.  Same as @RezaDorrani .  To exclude the "Claims" bit, in whatever step you're using the dynamic value, just grab the value rather than the whole element of the array.  Parse JSON might make that easier.

Paulie78
Super User
Super User

@dee2005 this is an approach you could use to remove the unwanted value and remove the claims property at the same time. To my mind, there is no point checking if the value exists and then remove it. That is two actions when one will do. Just remove it, if it does not exist it wont do anything.

https://ibb.co/1nTKdyY

removeElement.png

Result is a plain array with just these results:

removeElementResults.png

This example is only any good if your array2 only ever contains a single element.

 

Thanks @Paulie78 I guess I dont need a second array? I can just pass the text I want to remove in the filter array condition?

Paulie78
Super User
Super User

@dee2005 correct

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