Extending new keys to Map array

RE: Extending new keys to Map array

Shanmathi Ponnusamy — Thu, 24 Oct 2024 20:34:18 GMT

Is this what you are expecting? Here as you said , array 2 is dynamic and map in Array 1 takes the key from array 2 and update it with its ID.

a!localVariables(
  local!array1: {
    a!map(id: 12, name: "Name1"),
    a!map(id: 44, name: "Name2")
  },
  local!array2: {
    fullName: "john",
    address: "ABC",
    phoneNum: "876546",
    gender: "Male",
    company: "XYZ",
    dept:"IT"
  },
  local!labelNamesInArray2: a!keys(local!array2),
  local!n: length(local!labelNamesInArray2),
  a!forEach(
    items: local!array1,
    expression: a!localVariables(
      local!id: index(fv!item, "id", null),
      a!update(
        fv!item,
        local!labelNamesInArray2,
        repeat(local!n, local!id)
      )
    )
  )
)

RE: Extending new keys to Map array

Stefan Helzle — Thu, 24 Oct 2024 18:30:44 GMT

Can I win something here?

a!localVariables(
  local!array1: {
    a!map(id: 1, name: "Name1"),
    a!map(id: 2, name: "Name2")
  },
  local!n: 10,
  a!forEach(
    items: local!array1,
    expression: a!update(
      fv!item,
      apply(concat(_,_), merge(repeat(local!n, "key"), 1+enumerate(local!n))),
      repeat(local!n, fv!index)
    )
  )
)

BTW, the apply() can be replaced by a foreach().

Where is this challenge coming from?

RE: Extending new keys to Map array

Shahid — Thu, 24 Oct 2024 18:21:25 GMT

Hi Stefan Helzle you just hard coded the keys , in my case the number of keys can increase or decrease.

consider enumerate(n) instead enumerate(10) for array2

RE: Extending new keys to Map array

Stefan Helzle — Thu, 24 Oct 2024 18:18:28 GMT

Interesting exercise ...

a!localVariables(
  local!array1: {
    a!map(id: 1, name: "Name1"),
    a!map(id: 2, name: "Name2")
  },
  a!forEach(
    items: local!array1,
    expression: a!update(
      fv!item,
      {"key1", "key2", "key3", "key4", "key5", "key6", "key7", "key8", "key9", "key10"},
      repeat(10, fv!index)
    )
  )
)