Use ESM

index.js

@@ -1,11 +1,7 @@
-'use strict'
-
-var extend = require('extend')
-var has = require('hast-util-has-property')
-var rank = require('hast-util-heading-rank')
-var visit = require('unist-util-visit')
-
-module.exports = autolink
+import extend from 'extend'
+import has from 'hast-util-has-property'
+import rank from 'hast-util-heading-rank'
+import visit from 'unist-util-visit'
 
 var splice = [].splice
 
@@ -16,7 +12,7 @@ var contentDefaults = {
   children: []
 }
 
-function autolink(options) {
+export default function rehypeAutolinkHeadings(options) {
   var settings = options || {}
   var props = settings.properties
   var behavior = settings.behaviour || settings.behavior || 'prepend'
@@ -92,7 +88,7 @@ function autolink(options) {
       type: 'element',
       tagName: 'a',
       properties: Object.assign({}, props, {href: '#' + node.properties.id}),
-      children: children
+      children
     }
   }
 }

package.json

@@ -22,11 +22,12 @@
   "contributors": [
     "Titus Wormer <tituswormer@gmail.com> (https://wooorm.com)"
   ],
+  "sideEffects": false,
+  "type": "module",
+  "main": "index.js",
   "files": [
-    "index.js",
-    "types/index.d.ts"
+    "index.js"
   ],
-  "types": "types/index.d.ts",
   "dependencies": {
     "extend": "^3.0.0",
     "hast-util-has-property": "^1.0.0",
@@ -37,7 +38,6 @@
     "@types/hast": "^2.0.0",
     "bail": "^1.0.0",
     "c8": "^7.0.0",
-    "dtslint": "^4.0.0",
     "is-hidden": "^1.0.0",
     "negate": "^1.0.0",
     "prettier": "^2.0.0",
@@ -53,8 +53,7 @@
     "format": "remark . -qfo && prettier . -w --loglevel warn && xo --fix",
     "test-api": "node --conditions development test/index.js",
     "test-coverage": "c8 --check-coverage --branches 100 --functions 100 --lines 100 --statements 100 --reporter lcov npm run test-api",
-    "test-types": "dtslint types",
-    "test": "npm run format && npm run test-coverage && npm run test-types"
+    "test": "npm run format && npm run test-coverage"
   },
   "prettier": {
     "tabWidth": 2,
@@ -66,8 +65,9 @@
   },
   "xo": {
     "prettier": true,
-    "esnext": false,
     "rules": {
+      "no-var": "off",
+      "prefer-arrow-callback": "off",
       "unicorn/no-fn-reference-in-iterator": "off",
       "unicorn/prefer-optional-catch-binding": "off"
     },

test/index.js

@@ -1,17 +1,15 @@
-'use strict'
-
-var fs = require('fs')
-var path = require('path')
-var bail = require('bail')
-var test = require('tape')
-var rehype = require('rehype')
-var vfile = require('to-vfile')
-var negate = require('negate')
-var hidden = require('is-hidden')
-var autolink = require('..')
+import fs from 'fs'
+import path from 'path'
+import bail from 'bail'
+import test from 'tape'
+import rehype from 'rehype'
+import vfile from 'to-vfile'
+import negate from 'negate'
+import hidden from 'is-hidden'
+import autolink from '../index.js'
 
 test('rehype-autolink-headings', function (t) {
-  var root = path.join(__dirname, 'fixtures')
+  var root = path.join('test', 'fixtures')
 
   t.test('fixtures', function (t) {
     fs.readdir(root, function (error, files) {