unified

Project: syntax-tree/unist-util-find-all-before

Package: unist-util-find-all-before@4.0.0

  1. Dependents: 14
  2. unist utility to find nodes before another node
  1. util 144
  2. utility 140
  3. unist 127
  4. unist-util 25
  5. node 25
  6. find 11
  7. before 2

unist-util-find-all-before

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unist utility to find nodes before another node.

Install

This package is ESM only: Node 12+ is needed to use it and it must be imported instead of required.

npm:

npm install unist-util-find-all-before

Use

import {u} from 'unist-builder'
import {findAllBefore} from 'unist-util-find-all-before'

const tree = u('tree', [
  u('leaf', 'leaf 1'),
  u('node', [u('leaf', 'leaf 2'), u('leaf', 'leaf 3')]),
  u('leaf', 'leaf 4'),
  u('node', [u('leaf', 'leaf 5')]),
  u('leaf', 'leaf 6'),
  u('void'),
  u('leaf', 'leaf 7')
])

const leaf6 = tree.children[4]

console.log(findAllBefore(tree, leaf6, 'leaf'))

Yields:

[
  { type: 'leaf', value: 'leaf 4' },
  { type: 'leaf', value: 'leaf 1' }
]

API

This package exports the following identifiers: findAllBefore. There is no default export.

findAllBefore(parent, node|index[, test])

Find the first child before index (or node) in parent, that passes test (when given).

Parameters
Returns

Array.<Node>Children of parent passing test.

Contribute

See contributing.md in syntax-tree/.github for ways to get started. See support.md for ways to get help.

This project has a Code of Conduct. By interacting with this repository, organisation, or community you agree to abide by its terms.

License

MIT © Titus Wormer