How to push elements to an array

[AnupKumarPanwar]

I want to keep a track of visited productIds in an array. How do I push elements to an array?

I've tried the following code but it is not working.

let visitedProductIds = [1,2,3]
$visitedProductIds = $visitedProductIds + [4,5,6]

{
    "visited": $visitedProductIds
}

[larsga]

You can't. This is a functional language, so you can't change values. You can build new ones, but you can't change the ones that already exist.

You need to do something like this:

{
    "visited": <expression that computes visited product ids>
}

Now I don't understand what "visited" means in this context, but maybe something like this?

let visitedProducts = <whatever you do to make that list>

{
  "visited" : [for ($visitedProducts) .id], // or something like that
  "products" : $visitedProducts, // or something like it
}

I hope this helps.

[oyeyemi]

Hello, i am newbie in jslt. I don't know how to transform this type of array of json in jslt. Please i would need your help.
My input json is :
{
"test1" : "test output1",
"Details" : {
"0" : {
"id" : "first"
},
"1" : {
"id" : "second"
}
}
}

And my desired output is this.
{
“Details” : {
“0” : {
“id” : “first”,
“test1" : “test output1”
},
“1" : {
“id” : “second”,
“test1” : “test output1"
}
}
}

[larsga]

This is a new question, so it would be better to make a new issue for it. I'll answer you here anyway.

It's a bit difficult to tell what rules you want to follow here, but I'll make a guess. Maybe like this?

let obj = .
{
  "Details" : {for (.Details)
    .key : .value + {"test1" : $obj.test1}
  }
}

[oyeyemi]

Thank you so much for answering my question despite posted to the wrong place.
I noticed this part (+ {"test1" : $obj.test1}) did the trick. Please, can you kindly explain it to me in brief.
Thanks for your help.

[larsga]

Using + with two objects merges the two objects into one. Try it out in the playground and you'll see.

[oyeyemi]

Thank you for the explanation. I am on playground already. I also noticed it's appending comma(,) separator automatically.