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npm install unist-util-reduce

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MIT License

5 Stars

22 Commits

1 Forks

9 Branches

1 Contributors

Updated on May 24, 2025

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1

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Package Meta Information

Latest Version

0.2.2

Package Id

unist-util-reduce@0.2.2

Unpacked Size

5.80 kB

Size

2.82 kB

File Count

7

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Dependencies

2

remeda unist-util-is

Dev Dependencies

13

@types/jest @types/node @types/unist @types/unist-util-is @typescript-eslint/eslint-plugin @typescript-eslint/parser eslint eslint-config-prettier eslint-plugin-jest jest ts-jest typescript unist-builder

unist-util-reduce

unist utility to recursively reduce a tree

Install

npm:

1npm install unist-util-reduce

Usage

1const u = require("unist-builder");
2const reduce = require("unist-util-reduce");
3const assert = require("assert");
4
5const tree = u("tree", [
6  u("leaf", "1"),
7  u("node", [u("leaf", "2")]),
8  u("void"),
9  u("leaf", "3")
10]);
11
12const newTree = reduce(tree, function(node) {
13  if (node.value === "2") {
14    const duplicateNode = { ...node, value: "two" };
15    return [duplicateNode, node];
16  }
17  return node;
18});
19
20const expected = u("tree", [
21  u("leaf", "1"),
22  u("node", [u("leaf", "two"), u("leaf", "2")]),
23  u("void"),
24  u("leaf", "3")
25]);
26
27assert.deepEqual(newTree, expected);

NOTE: leaf with value 2 is visited before it's parent node. By the time your transform function is invoked, it's children will already have been passed through transform.

API

`reduce(tree, transform)`

tree - A node of type Parent
transform - A function with the signature:
- (node: Node, path: number[], root: Paretn) => Node | Node[]
  - node - The Node in the tree to be transformed
  - path - The path to reach this node in each level of the tree
  - root - The Parent root node
  - Returns - What you return is passed to .concat() on the children array of the node's parent.

License

No vulnerabilities found.

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Vulnerabilities

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Score

1.7

/10

Last Scanned on 2025-07-07

The Open Source Security Foundation is a cross-industry collaboration to improve the security of open source software (OSS). The Scorecard provides security health metrics for open source projects.

Learn More

unist-util-reduce

Installations

Developer Guide

No

CommonJS

Pull Requests

9

10

1

Issues

0

0

0

Releases

Unable to fetch releases

Languages

Developer

GenerousLabs

Download Statistics

GitHub Statistics

Maintainers

Package Meta Information

Total Downloads

NaN

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dependencies

Dev Dependencies

unist-util-reduce

Install

Usage

API

reduce(tree, transform)

Related

License

10

10

0

0

0

0

0

0

0

0

1.7

/10

`reduce(tree, transform)`