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jsonata

Wrap array in an array in JSONata

Lets say I have a data structure that looks like this:

{ a: [ 1, 2, 3] }

I want to return 'a' wrapped in an array:

[ [ 1, 2, 3] ]

Is there any way to do this in JSONata?

Intuitively you would try [a], which you would expect to return the array as [[1,2,3]], but this returns [1,2,3], because of array singleton equivalence in JSONata.

Solution

  • You can try the below query 

    [[a]] - wrapping a within 2 set of square brackets

    Since 'a' returns 

     1, 2, 3

    [[a]] returns

    [[1,2,3]]