Package Exports

unist-util-find-all-before

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Readme

unist-util-find-all-before

unist utility to find nodes before another node.

Install

npm:

npm install unist-util-find-all-before

Use

var u = require('unist-builder')
var findAllBefore = require('unist-util-find-all-before')

var 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')
])

var leaf6 = tree.children[4]

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

Yields:

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

API

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

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

Parameters

parent (Node) — Parent node
node (Node) — Child of parent
index (number, optional) — Index in parent
test (Function, string, Object, Array, optional) — See unist-util-is

Returns

Array.<Node> — Children of parent passing test.

unist-util-find-after — Find a node after another node
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-between — Find all nodes between two nodes
unist-util-visit — Recursively walk over nodes
unist-util-visit-parents — Like visit, but 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 a given function
unist-util-remove — Remove nodes from a tree that pass a test
unist-util-select — Select nodes with CSS-like selectors

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.