Minor lint tweaks. (#29328)

js/tests/helpers/fixture.js

@@ -23,8 +23,7 @@ export const clearFixture = () => {
   fixtureEl.innerHTML = ''
 }
 
-export const createEvent = (eventName, params) => {
-  params = params || {}
+export const createEvent = (eventName, params = {}) => {
   const e = document.createEvent('Event')
 
   e.initEvent(eventName, Boolean(params.bubbles), Boolean(params.cancelable))

js/tests/karma.conf.js

 /* eslint-env node */
-/* eslint no-process-env: 0 */
-
 const path = require('path')
 const ip = require('ip')
+const babel = require('rollup-plugin-babel')
+const istanbul = require('rollup-plugin-istanbul')
+const resolve = require('rollup-plugin-node-resolve')
+
 const {
   browsers,
   browsersKeys
 } = require('./browsers')
-const babel = require('rollup-plugin-babel')
-const istanbul = require('rollup-plugin-istanbul')
-const resolve = require('rollup-plugin-node-resolve')
 
 const { env } = process
 const browserStack = env.BROWSER === 'true'

package.json

@@ -46,7 +46,7 @@
     "js-compile-bundle": "rollup --environment BUNDLE:true --config build/rollup.config.js --sourcemap",
     "js-compile-plugins": "node build/build-plugins.js",
     "js-lint": "npm-run-all --continue-on-error --parallel js-lint-*",
-    "js-lint-main": "eslint --cache --cache-location .cache/.eslintcache js/src js/tests build/",
+    "js-lint-main": "eslint --cache --cache-location .cache/.eslintcache js/ build/",
     "js-lint-docs": "eslint --cache --cache-location .cache/.eslintcache site/",
     "js-minify": "npm-run-all --parallel js-minify-main js-minify-docs",
     "js-minify-main": "npm-run-all js-minify-standalone* js-minify-bundle",