Utilities

pruneEmpty

Remove recursively empty data while preserving zero and false.

Use it in your component

Standalone component

import { Component } from '@angular/core';
import { JsonPipe } from '@angular/common';
import { PruneEmptyPipe } from 'extra-pipe';

@Component({
  standalone: true,
  imports: [PruneEmptyPipe, JsonPipe],
  template: `{{ data | pruneEmpty | json }}`,
})
export class ExampleComponent {
readonly data = { a: "", b: 0, c: false, d: { e: null } };
}

Template

{{ data | pruneEmpty | json }}

Try it live.

The output below runs the packed library. Edit data, not code.

Input (JSON)Use double quotes for text, or a number, array, object or null.

Parameters (JSON array)No parameters: use []. Locale is controlled separately.

Output localeThis pipe has no locale override.

Live template data

readonly value = {
  "a": "",
  "b": 0,
  "c": false,
  "d": {
    "e": null
  }
} as const;

{{ value | pruneEmpty | json }}

Rendered output

{
  "b": 0,
  "c": false
}