Collections

flatten

Present nested lists with explicit bounded depth.

Use it in your component

Standalone component

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

@Component({
  standalone: true,
  imports: [FlattenPipe, JsonPipe],
  template: `{{ [1,[2,[3]]] | flatten: 2 | json }}`,
})
export class ExampleComponent {

}

Template

{{ [1,[2,[3]]] | flatten: 2 | 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)Ordered parameters: depth. Locale is controlled separately.

Output localeThis pipe has no locale override.

Live template data

readonly value = [
  1,
  [
    2,
    [
      3
    ]
  ]
] as const;
readonly parameter0 = 2;
{{ value | flatten: parameter0 | json }}

Rendered output

[
  1,
  2,
  3
]