Use ESM

Author: wooorm

.gitignore

@@ -1,8 +1,5 @@
 .DS_Store
 *.log
-.nyc_output/
 coverage/
 node_modules/
-unist-util-stringify-position.js
-unist-util-stringify-position.min.js
 yarn.lock

.prettierignore

@@ -1,5 +1,2 @@
 coverage/
-unist-util-stringify-position.js
-unist-util-stringify-position.min.js
-*.json
 *.md

index.js

@@ -1,10 +1,6 @@
-'use strict'
-
 var own = {}.hasOwnProperty
 
-module.exports = stringify
-
-function stringify(value) {
+export function stringifyPosition(value) {
   // Nothing.
   if (!value || typeof value !== 'object') {
     return ''

package.json

@@ -25,16 +25,20 @@
   "contributors": [
     "Titus Wormer <[email protected]> (https://wooorm.com)"
   ],
+  "sideEffects": false,
+  "type": "module",
+  "main": "index.js",
   "types": "types/index.d.ts",
   "files": [
     "types/index.d.ts",
     "index.js"
   ],
   "dependencies": {
-    "@types/unist": "^2.0.2"
+    "@types/unist": "^2.0.0"
   },
   "devDependencies": {
     "browserify": "^17.0.0",
+    "c8": "^7.0.0",
     "dtslint": "^4.0.0",
     "nyc": "^15.0.0",
     "prettier": "^2.0.0",
@@ -47,19 +51,10 @@
   },
   "scripts": {
     "format": "remark . -qfo && prettier . -w --loglevel warn && xo --fix",
-    "build-bundle": "browserify . -s unistUtilStringifyPosition -o unist-util-stringify-position.js",
-    "build-mangle": "browserify . -s unistUtilStringifyPosition -o unist-util-stringify-position.min.js -p tinyify",
-    "build": "npm run build-bundle && npm run build-mangle",
-    "test-api": "node test",
-    "test-coverage": "nyc --reporter lcov tape test.js",
+    "test-api": "node test.js",
+    "test-coverage": "c8 --check-coverage --branches 100 --functions 100 --lines 100 --statements 100 --reporter lcov node test.js",
     "test-types": "dtslint types",
-    "test": "npm run format && npm run build && npm run test-coverage && npm run test-types"
-  },
-  "nyc": {
-    "check-coverage": true,
-    "lines": 100,
-    "functions": 100,
-    "branches": 100
+    "test": "npm run format && npm run test-coverage && npm run test-types"
   },
   "prettier": {
     "tabWidth": 2,
@@ -71,10 +66,10 @@
   },
   "xo": {
     "prettier": true,
-    "esnext": false,
-    "ignores": [
-      "unist-util-stringify-position.js"
-    ]
+    "rules": {
+      "no-var": "off",
+      "prefer-arrow-callback": "off"
+    }
   },
   "remarkConfig": {
     "plugins": [

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
@@ -21,16 +24,16 @@ npm install unist-util-stringify-position
 ## Use
 
 ```js
-var stringify = require('unist-util-stringify-position')
+import {stringifyPosition} from 'unist-util-stringify-position'
 
 // Point
-stringify({line: 2, column: 3}) // => '2:3'
+stringifyPosition({line: 2, column: 3}) // => '2:3'
 
 // Position
-stringify({start: {line: 2}, end: {line: 3}}) // => '2:1-3:1'
+stringifyPosition({start: {line: 2}, end: {line: 3}}) // => '2:1-3:1'
 
 // Node
-stringify({
+stringifyPosition({
   type: 'text',
   value: '!',
   position: {
@@ -42,6 +45,9 @@ stringify({
 
 ## API
 
+This package exports the following identifiers: `stringifyPosition`.
+There is no default export.
+
 ### `stringifyPosition(node|position|point)`
 
 Stringify one [point][], a [position][] (start and end [point][]s), or a node’s

test.js

@@ -1,29 +1,43 @@
-'use strict'
-
-var test = require('tape')
-var stringify = require('.')
+import test from 'tape'
+import {stringifyPosition} from './index.js'
 
 test('stringifyPosition', function (t) {
-  t.equal(stringify(), '', 'should return empty `string` with `undefined`')
-  t.equal(stringify(null), '', 'should return empty `string` with `null`')
-  t.equal(stringify('foo'), '', 'should return empty `string` with `string`')
-  t.equal(stringify(5), '', 'should return empty `string` with `number`')
-  t.equal(stringify({}), '', 'should return empty `string` with `{}`')
+  t.equal(
+    stringifyPosition(),
+    '',
+    'should return empty `string` with `undefined`'
+  )
+  t.equal(
+    stringifyPosition(null),
+    '',
+    'should return empty `string` with `null`'
+  )
+  t.equal(
+    stringifyPosition('foo'),
+    '',
+    'should return empty `string` with `string`'
+  )
+  t.equal(
+    stringifyPosition(5),
+    '',
+    'should return empty `string` with `number`'
+  )
+  t.equal(stringifyPosition({}), '', 'should return empty `string` with `{}`')
 
   t.equal(
-    stringify({type: 'text'}),
+    stringifyPosition({type: 'text'}),
     '1:1-1:1',
     'should return a range for a `node` without `position`'
   )
 
   t.equal(
-    stringify({type: 'text', position: 3}),
+    stringifyPosition({type: 'text', position: 3}),
     '1:1-1:1',
     'should return a range for `node` with invalid `position` #1'
   )
 
   t.equal(
-    stringify({
+    stringifyPosition({
       type: 'text',
       position: {start: {}, end: {}}
     }),
@@ -32,7 +46,7 @@ test('stringifyPosition', function (t) {
   )
 
   t.equal(
-    stringify({
+    stringifyPosition({
       type: 'text',
       position: {
         start: {line: null, column: null},
@@ -44,7 +58,7 @@ test('stringifyPosition', function (t) {
   )
 
   t.equal(
-    stringify({
+    stringifyPosition({
       type: 'text',
       position: {
         start: {line: 2, column: 5},
@@ -56,25 +70,25 @@ test('stringifyPosition', function (t) {
   )
 
   t.equal(
-    stringify({start: null, end: null}),
+    stringifyPosition({start: null, end: null}),
     '1:1-1:1',
     'should return a range for a `position` without `point`s'
   )
 
   t.equal(
-    stringify({start: 3, end: 6}),
+    stringifyPosition({start: 3, end: 6}),
     '1:1-1:1',
     'should return a range for `position` with invalid `point`s #1'
   )
 
   t.equal(
-    stringify({start: {}, end: {}}),
+    stringifyPosition({start: {}, end: {}}),
     '1:1-1:1',
     'should return range for `position` with invalid `point`s #1'
   )
 
   t.equal(
-    stringify({
+    stringifyPosition({
       start: {line: null, column: null},
       end: {line: null, column: null}
     }),
@@ -83,7 +97,7 @@ test('stringifyPosition', function (t) {
   )
 
   t.equal(
-    stringify({
+    stringifyPosition({
       start: {line: 2, column: 5},
       end: {line: 2, column: 6}
     }),
@@ -92,31 +106,31 @@ test('stringifyPosition', function (t) {
   )
 
   t.equal(
-    stringify({line: null, column: null}),
+    stringifyPosition({line: null, column: null}),
     '1:1',
     'should return a point for a `point` without indices'
   )
 
   t.equal(
-    stringify({line: 'foo', column: 'bar'}),
+    stringifyPosition({line: 'foo', column: 'bar'}),
     '1:1',
     'should return a point for a `point` with invalid indices #1'
   )
 
   t.equal(
-    stringify({line: 4}),
+    stringifyPosition({line: 4}),
     '4:1',
     'should return a point for a partially valid `point` #1'
   )
 
   t.equal(
-    stringify({column: 12}),
+    stringifyPosition({column: 12}),
     '1:12',
     'should return a point for a partially valid `point` #1'
   )
 
   t.equal(
-    stringify({line: 5, column: 2}),
+    stringifyPosition({line: 5, column: 2}),
     '5:2',
     'should return a point for a valid `point`'
   )