compact

Remove null and empty-string values from a collection.

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Syntax

{{ value | compact }}

Usage

  • Whitespace-only strings are empty. The values 0 and false are preserved.
  • For objects, matching properties are removed. Nested collections are preserved.
  • Serialized arrays and objects produced by another filter are recognized automatically.

Examples

Array

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Data
{  "items": [    null,    "",    "one",    0,    false,    "two"  ]}
Template
{{ items | compact }}
Output
["one",0,false,"two"]

Object

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Data
{  "values": {    "empty": "",    "missing": null,    "count": 0,    "enabled": false  }}
Template
{{ values | compact }}
Output
{"count":0,"enabled":false}