Update dev-dependencies

package.json

@@ -32,26 +32,26 @@
     "src/index.js"
   ],
   "dependencies": {
-    "extend": "^3.0.2",
+    "extend": "^3.0.0",
     "unist-util-visit": "^1.0.1"
   },
   "devDependencies": {
     "@babel/cli": "^7.0.0",
     "@babel/core": "^7.0.0",
     "@babel/preset-env": "^7.0.0",
     "@babel/register": "^7.0.0",
-    "ava": "2.0.0",
+    "ava": "3.0.0",
     "babel-plugin-add-module-exports": "^1.0.0",
     "browserify": "^16.0.0",
-    "nyc": "^14.0.0",
-    "prettier": "^1.0.0",
+    "nyc": "^15.0.0",
+    "prettier": "^2.0.0",
     "remark": "^11.0.0",
     "remark-cli": "^7.0.0",
-    "remark-html": "^10.0.0",
+    "remark-html": "^11.0.0",
     "remark-preset-wooorm": "^6.0.0",
-    "remark-slug": "^5.0.0",
+    "remark-slug": "^6.0.0",
     "tinyify": "^2.0.0",
-    "xo": "^0.24.0"
+    "xo": "^0.28.0"
   },
   "scripts": {
     "prepublishOnly": "npm run compile",

src/__tests__/index.js

@@ -6,11 +6,11 @@ import slug from 'remark-slug'
 import html from 'remark-html'
 import headings from '..'
 
-const base = file => read(join(__dirname, 'fixtures', file), 'utf-8')
+const base = (file) => read(join(__dirname, 'fixtures', file), 'utf-8')
 const behaviors = ['append', 'prepend', 'wrap']
 
-test('should autolink headings', t => {
-  behaviors.forEach(b => {
+test('should autolink headings', (t) => {
+  behaviors.forEach((b) => {
     t.is(
       remark()
         .use(slug)
@@ -24,8 +24,8 @@ test('should autolink headings', t => {
   })
 })
 
-test('should autolink headings with deprecated option', t => {
-  behaviors.forEach(b => {
+test('should autolink headings with deprecated option', (t) => {
+  behaviors.forEach((b) => {
     t.is(
       remark()
         .use(slug)
@@ -39,7 +39,7 @@ test('should autolink headings with deprecated option', t => {
   })
 })
 
-test('should accept custom content', t => {
+test('should accept custom content', (t) => {
   t.is(
     remark()
       .use(slug)
@@ -51,7 +51,7 @@ test('should accept custom content', t => {
   )
 })
 
-test('should accept custom content as an array', t => {
+test('should accept custom content as an array', (t) => {
   t.is(
     remark()
       .use(slug)
@@ -63,7 +63,7 @@ test('should accept custom content as an array', t => {
   )
 })
 
-test('should accept link properties', t => {
+test('should accept link properties', (t) => {
   t.is(
     remark()
       .use(slug)
@@ -75,13 +75,9 @@ test('should accept link properties', t => {
   )
 })
 
-test('should do nothing if slugs are not used', t => {
+test('should do nothing if slugs are not used', (t) => {
   t.is(
-    remark()
-      .use(headings)
-      .use(html)
-      .processSync(base('input.md'))
-      .toString(),
+    remark().use(headings).use(html).processSync(base('input.md')).toString(),
     base('output.html')
   )
 })

src/index.js

@@ -13,21 +13,21 @@ const defaults = {behavior: 'prepend', content: contentDefaults}
 
 let deprecationWarningIssued = false
 
-export default function attacher(opts = {}) {
-  let {linkProperties, behavior, content} = {...defaults, ...opts}
+export default function attacher(options = {}) {
+  let {linkProperties, behavior, content} = {...defaults, ...options}
   let method
   let hChildren
 
   // NOTE: Remove in next major version
-  if (opts.behaviour !== undefined) {
+  if (options.behaviour !== undefined) {
     if (!deprecationWarningIssued) {
       deprecationWarningIssued = true
       console.warn(
         '[remark-autolink-headings] Deprecation Warning: `behaviour` is a nonstandard option. Use `behavior` instead.'
       )
     }
 
-    behavior = opts.behaviour
+    behavior = options.behaviour
   }
 
   if (behavior === 'wrap') {
@@ -41,7 +41,7 @@ export default function attacher(opts = {}) {
     }
   }
 
-  return ast => visit(ast, 'heading', visitor)
+  return (tree) => visit(tree, 'heading', visitor)
 
   function visitor(node) {
     const {data} = node