Refactor code-style

Author: wooorm

index.js

@@ -25,13 +25,13 @@
  */
 export function positionFromEstree(value) {
   /** @type {NodeLike} */
-  var node = value || {}
+  const node = value || {}
   /** @type {LocLike} */
-  var loc = node.loc || {}
+  const loc = node.loc || {}
   /** @type {RangeLike} */
-  var range = node.range || [0, 0]
-  var startOffset = range[0] || node.start
-  var endOffset = range[1] || node.end
+  const range = node.range || [0, 0]
+  const startOffset = range[0] || node.start
+  const endOffset = range[1] || node.end
 
   return {
     start: {

package.json

@@ -68,11 +68,7 @@
     "trailingComma": "none"
   },
   "xo": {
-    "prettier": true,
-    "rules": {
-      "no-var": "off",
-      "prefer-arrow-callback": "off"
-    }
+    "prettier": true
   },
   "remarkConfig": {
     "plugins": [

readme.md

@@ -28,7 +28,10 @@ import {parse} from 'acorn'
 import {positionFromEstree} from 'unist-util-position-from-estree'
 
 // Make acorn support line/column.
-var node = parse('function x() { console.log(1) }', {locations: true})
+const node = parse('function x() { console.log(1) }', {
+  ecmaVersion: 2020,
+  locations: true
+})
 
 console.log(positionFromEstree(node)) // `Program`
 console.log(positionFromEstree(node.body[0].id)) // `x`

test.js

@@ -2,7 +2,7 @@ import test from 'tape'
 import {parse} from 'acorn'
 import {positionFromEstree} from './index.js'
 
-test('unist-util-position-from-estree', function (t) {
+test('unist-util-position-from-estree', (t) => {
   t.deepEqual(
     positionFromEstree(),
     {