Array Filters

Array filters manipulate the output of arrays.

first

Return the first element in the array.

Parameters

Parameter	Description
type (required)	Must be first.

Example

Note: input arrays are actually treated as multiple separate inputs so the following example is just for illustration.

input:
  - foo
  - bar
  - baz
schema:
  type: string
  filter:
    type: first

Outputs:

foo

join

Join array elements to a string.

Parameters

Parameter	Description
type (required)	Must be join.
separator (required)	Specifies a string to separate each pair of adjacent elements of the array. If it’s an empty string the elements are joined without any character in between them.

Example

Note: input arrays are actually treated as multiple separate inputs so the following example is just for illustration.

input:
  - foo
  - bar
  - baz
schema:
  type: array
  items:
    type: string
  filter:
    type: join
    separator: '-'

Outputs:

foo-bar-baz

last

Return the last element in the array.

Parameters

Parameter	Description
type (required)	Must be last.

Example

Note: input arrays are actually treated as multiple separate inputs so the following example is just for illustration.

input:
  - foo
  - bar
  - baz
schema:
  type: string
  filter:
    type: last

Outputs:

baz

pop

Remove the last element in the array.

Parameters

Parameter	Description
type (required)	Must be pop.

Example

Note: input arrays are actually treated as multiple separate inputs so the following example is just for illustration.

input:
  - foo
  - bar
  - baz
schema:
  type: string
  filter:
    type: pop

Outputs:

- foo
- bar

shift

Remove the first element in the array.

Parameters

Parameter	Description
type (required)	Must be shift.

Example

Note: input arrays are actually treated as multiple separate inputs so the following example is just for illustration.

input:
  - foo
  - bar
  - baz
schema:
  type: array
  items:
    type: string
  filter:
    type: shift

Outputs:

- bar
- baz