Unist-util-find-after NPM

unist-util-find-after

unist utility to find a node after another node.

What is this?

This is a tiny utility that you can use to find a node after another node or after an index in a parent.

When should I use this?

This is super tiny. You can of course do it yourself. But this helps when integrating with the rest of unified and unist.

Install

This package is ESM only. In Node.js (version 16+), install with npm:

npm install unist-util-find-after

In Deno with esm.sh:

import {findAfter} from 'https://esm.sh/unist-util-find-after@5'

In browsers with esm.sh:

<script type="module">
  import {findAfter} from 'https://esm.sh/unist-util-find-after@5?bundle'
</script>

Use

import {u} from 'unist-builder'
import {findAfter} from 'unist-util-find-after'

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

console.log(findAfter(tree, 1, 'parent'))

Yields:

{type: 'parent', children: [{ type: 'leaf', value: 'leaf 5'}]}

API

This package exports the identifier findAfter. There is no default export.

`findAfter(parent, node|index[, test])`

Find the first node in parent after another node or after an index, that passes test.

Parameters

parent (Node) — parent node
index (number) — index of child in parent
child (Node) — child in parent
test (Test) — unist-util-is-compatible test

Returns

Child of parent (Node) or undefined.

Types

This package is fully typed with TypeScript. It exports no additional types (types for the test are in unist-util-is).

Compatibility

Projects maintained by the unified collective are compatible with maintained versions of Node.js.

When we cut a new major release, we drop support for unmaintained versions of Node. This means we try to keep the current release line, unist-util-find-after@^5, compatible with Node.js 16.

unist-util-visit — walk the tree
unist-util-visit-parents — walk the tree with a stack of parents
unist-util-filter — create a new tree with all nodes that pass a test
unist-util-map — create a new tree with all nodes mapped by a given function
unist-util-flatmap — create a new tree by mapping (to an array) with the provided function and then flattening
unist-util-find-before — find a node before another node
unist-util-find-all-after — find all nodes after another node
unist-util-find-all-before — find all nodes before another node
unist-util-find-all-between — find all nodes between two nodes
unist-util-remove — remove nodes from a tree that pass a test
unist-util-select — select nodes with CSS-like selectors