[Refactor] no-danger: use Object.fromEntries and Object.hasOwn instead of reduce

Author: ljharb

lib/rules/no-danger.js

@@ -5,6 +5,9 @@
 
 'use strict';
 
+const has = require('object.hasown/polyfill')();
+const fromEntries = require('object.fromentries/polyfill')();
+
 const docsUrl = require('../util/docsUrl');
 const jsxUtil = require('../util/jsx');
 const report = require('../util/report');
@@ -17,10 +20,7 @@ const DANGEROUS_PROPERTY_NAMES = [
   'dangerouslySetInnerHTML'
 ];
 
-const DANGEROUS_PROPERTIES = DANGEROUS_PROPERTY_NAMES.reduce((props, prop) => {
-  props[prop] = prop;
-  return props;
-}, Object.create(null));
+const DANGEROUS_PROPERTIES = fromEntries(DANGEROUS_PROPERTY_NAMES.map((prop) => [prop, prop]));
 
 // ------------------------------------------------------------------------------
 // Helpers
@@ -32,7 +32,7 @@ const DANGEROUS_PROPERTIES = DANGEROUS_PROPERTY_NAMES.reduce((props, prop) => {
  * @returns {boolean} Whether or not the attribute is dnagerous.
  */
 function isDangerous(name) {
-  return name in DANGEROUS_PROPERTIES;
+  return has(DANGEROUS_PROPERTIES, name);
 }
 
 // ------------------------------------------------------------------------------