$$concat

Concatenates primary value array with elements or other arrays of elements

note

Elements which are null on the primary value will be ignored.

Usage

{ 
  "$$concat": /* Array of arrays / elements (null elements are ignored) */
}

"$$concat:{input}"

Returns

array

Arguments

Argument	Type	Values	Required / Default Value	Description
Primary	array		Yes	Array of arrays / elements (null elements are ignored)

Examples

Input

Definition

Output

[
  [
    "a",
    "b",
    "c"
  ],
  [
    "d",
    "e",
    "f"
  ]
]

{
  "$$concat": [
    "$[0]",
    "$[1]"
  ]
}

[
  "a",
  "b",
  "c",
  "d",
  "e",
  "f"
]

Test

[
  [
    "a",
    "b",
    "c"
  ],
  [
    "d",
    "e",
    "f"
  ]
]

{
  "$$concat": [
    [
      "a",
      null,
      "c"
    ],
    [
      "d",
      "e",
      null
    ]
  ]
}

[
  "a",
  null,
  "c",
  "d",
  "e",
  null
]

Test

null

{
  "$$concat": [
    [
      "a",
      "b",
      "c"
    ],
    null
  ]
}

[
  "a",
  "b",
  "c"
]

Test

null

{
  "$$concat": [
    [
      "a",
      "b",
      "c"
    ],
    "d",
    [
      "e"
    ]
  ]
}

[
  "a",
  "b",
  "c",
  "d",
  "e"
]

Test

[
  [
    "a",
    "b",
    "c"
  ],
  "d",
  [
    "e"
  ]
]

{
  "$$concat": "$"
}

[
  "a",
  "b",
  "c",
  "d",
  "e"
]

Test