From d2227739b0ea094e7188285c975b4e72c8f8e46f Mon Sep 17 00:00:00 2001
From: Titus Wormer <tituswormer@gmail.com>
Date: Tue, 20 Apr 2021 12:29:27 +0200
Subject: [PATCH] Use ESM

---
 .gitignore      |  3 ---
 .prettierignore |  3 ---
 index.js        |  8 ++------
 package.json    | 40 ++++++++++++++++------------------------
 readme.md       | 10 ++++++++--
 test.js         | 10 ++++------
 6 files changed, 30 insertions(+), 44 deletions(-)

diff --git a/.gitignore b/.gitignore
index 2122bb6..735f4af 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,8 +1,5 @@
 .DS_Store
 *.log
-.nyc_output/
 coverage/
 node_modules/
-unist-util-remove-position.js
-unist-util-remove-position.min.js
 yarn.lock
diff --git a/.prettierignore b/.prettierignore
index b40724f..cebe81f 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -1,5 +1,2 @@
 coverage/
-unist-util-remove-position.js
-unist-util-remove-position.min.js
-*.json
 *.md
diff --git a/index.js b/index.js
index 54287d8..14fe508 100644
--- a/index.js
+++ b/index.js
@@ -1,10 +1,6 @@
-'use strict'
+import {visit} from 'unist-util-visit'
 
-var visit = require('unist-util-visit')
-
-module.exports = removePosition
-
-function removePosition(node, force) {
+export function removePosition(node, force) {
   visit(node, remove)
 
   return node
diff --git a/package.json b/package.json
index fc14640..a67fdce 100644
--- a/package.json
+++ b/package.json
@@ -25,36 +25,32 @@
     "Titus Wormer <tituswormer@gmail.com> (https://wooorm.com)",
     "Merlijn Vos <merlijn@soverin.net>"
   ],
+  "sideEffects": false,
+  "type": "module",
+  "main": "index.js",
+  "types": "types/index.d.ts",
   "files": [
-    "index.js",
-    "types/index.d.ts"
+    "types/index.d.ts",
+    "index.js"
   ],
-  "types": "types/index.d.ts",
   "dependencies": {
-    "unist-util-visit": "^2.0.0"
+    "unist-util-visit": "^3.0.0"
   },
   "devDependencies": {
-    "browserify": "^17.0.0",
-    "dtslint": "^4.0.0",
-    "nyc": "^15.0.0",
+    "c8": "^7.0.0",
     "prettier": "^2.0.0",
     "remark": "^13.0.0",
     "remark-cli": "^9.0.0",
     "remark-preset-wooorm": "^8.0.0",
     "tape": "^5.0.0",
-    "tinyify": "^3.0.0",
-    "unist-builder": "^2.0.0",
+    "unist-builder": "^3.0.0",
     "xo": "^0.38.0"
   },
   "scripts": {
     "format": "remark . -qfo && prettier . -w --loglevel warn && xo --fix",
-    "build-bundle": "browserify . -s unistUtilRemovePosition -o unist-util-remove-position.js",
-    "build-mangle": "browserify . -s unistUtilRemovePosition -o unist-util-remove-position.min.js -p tinyify",
-    "build": "npm run build-bundle && npm run build-mangle",
-    "test-types": "dtslint types",
-    "test-api": "node test",
-    "test-coverage": "nyc --reporter lcov tape test.js",
-    "test": "npm run format && npm run build && npm run test-coverage && npm run test-types"
+    "test-api": "node test.js",
+    "test-coverage": "c8 --check-coverage --branches 100 --functions 100 --lines 100 --statements 100 --reporter lcov node test.js",
+    "test": "npm run format && npm run test-coverage"
   },
   "prettier": {
     "tabWidth": 2,
@@ -66,18 +62,14 @@
   },
   "xo": {
     "prettier": true,
-    "esnext": false,
+    "rules": {
+      "no-var": "off",
+      "prefer-arrow-callback": "off"
+    },
     "ignores": [
-      "unist-util-remove-position.js",
       "types/"
     ]
   },
-  "nyc": {
-    "check-coverage": true,
-    "lines": 100,
-    "functions": 100,
-    "branches": 100
-  },
   "remarkConfig": {
     "plugins": [
       "preset-wooorm"
diff --git a/readme.md b/readme.md
index 24de76e..e741a92 100644
--- a/readme.md
+++ b/readme.md
@@ -12,6 +12,9 @@
 
 ## Install
 
+This package is [ESM only](https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c):
+Node 12+ is needed to use it and it must be `import`ed instead of `require`d.
+
 [npm][]:
 
 ```sh
@@ -21,8 +24,8 @@ npm install unist-util-remove-position
 ## Use
 
 ```js
-var remark = require('remark')
-var removePosition = require('unist-util-remove-position')
+import remark from 'remark'
+import {removePosition} from 'unist-util-remove-position'
 
 var tree = remark().parse('Some _emphasis_, **importance**, and `code`.')
 
@@ -55,6 +58,9 @@ Yields:
 
 ## API
 
+This package exports the following identifiers: `removePosition`.
+There is no default export.
+
 ### `removePosition(node[, force])`
 
 Remove [`position`][position] fields from [`node`][node].
diff --git a/test.js b/test.js
index ef57917..52604d2 100644
--- a/test.js
+++ b/test.js
@@ -1,9 +1,7 @@
-'use strict'
-
-var test = require('tape')
-var u = require('unist-builder')
-var remark = require('remark')
-var removePosition = require('.')
+import test from 'tape'
+import remark from 'remark'
+import {u} from 'unist-builder'
+import {removePosition} from './index.js'
 
 test('removePosition()', function (t) {
   var empty = {position: undefined}