Array Expression

RE: Array Expression

randolpho0001 — Fri, 10 Apr 2020 05:39:37 GMT

Thanks, Pete... exactly what I need.

RE: Array Expression

Peter Lewis — Thu, 09 Apr 2020 12:59:23 GMT

Yeah that seems fine to me - you could also use updatearray() if you want to update only that row and not use a!forEach(). Here's an example:

a!localVariables(
  local!array:
  {
    { id: 1, deleted: true, activeStep: false },
    { id: 2, deleted: false, activeStep: false },
    { id: 3, deleted: false, activeStep: false },
  },
  local!rowToUpdate: tointeger(min(where(not(tointeger(local!array.deleted))))),
  local!itemToUpdate: index(local!array, local!rowToUpdate, {}), 
  updatearray(
    local!array,
    local!rowToUpdate,
    {
      id: index(local!itemToUpdate, "id", null),
      deleted: false,
      activeStep: true
    }
  )
)

RE: Array Expression

randolpho0001 — Thu, 09 Apr 2020 09:11:25 GMT

Hi harshav, Thanks for that. Problem is it's not always the first index. It's the minimum index where the deleted field is false.

I just got this working below by finding that minimum index first, but would love to know if there's a more ideal way.

a!localVariables(
local!array:
{
{ id: 1, deleted: true, activeStep: false },
{ id: 2, deleted: false, activeStep: false },
{ id: 3, deleted: false, activeStep: false },
},
local!rowToUpdate: min(wherecontains("false", split(tostring(local!array.deleted), "; "))),

a!forEach(
local!array,
if(fv!index=local!rowToUpdate,
{id: fv!item.id, deleted: fv!item.deleted, activeStep: true},
fv!item
)
)
)

RE: Array Expression

harshav — Thu, 09 Apr 2020 08:59:17 GMT

Try it using a!foreach but change your logic like this,

a!foreach(

items: local!array,

expression: if(fv!index = 1,

set the value which you want to true , else fv!item)