fix: use const arrays

src/client/updateClientMetaInfo.js

@@ -1,3 +1,4 @@
+import { metaInfoOptionKeys, metaInfoAttributeKeys } from '../shared/constants'
 import { updateAttribute, updateTag, updateTitle } from './updaters'
 
 const getTag = (tags, tag) => {
@@ -29,13 +30,7 @@ export default function updateClientMetaInfo(options = {}, newInfo) {
 
     Object.keys(newInfo).forEach((type) => {
       // ignore these
-      if ([
+      if (metaInfoOptionKeys.includes(type)) {
-        'titleChunk',
-        'titleTemplate',
-        'changed',
-        '__dangerouslyDisableSanitizers',
-        '__dangerouslyDisableSanitizersByTagID'
-      ].includes(type)) {
         return
       }
 
@@ -45,7 +40,7 @@ export default function updateClientMetaInfo(options = {}, newInfo) {
         return
       }
 
-      if (['htmlAttrs', 'headAttrs', 'bodyAttrs'].includes(type)) {
+      if (metaInfoAttributeKeys.includes(type)) {
         const tagName = type.substr(0, 4)
         updateAttribute(options, newInfo[type], getTag(tags, tagName))
         return

src/server/generateServerInjector.js

@@ -1,3 +1,4 @@
+import { metaInfoAttributeKeys } from '../shared/constants'
 import { titleGenerator, attributeGenerator, tagGenerator } from './generators'
 
 /**
@@ -13,7 +14,7 @@ export default function generateServerInjector(options, type, data) {
     return titleGenerator(options, type, data)
   }
 
-  if (['htmlAttrs', 'headAttrs', 'bodyAttrs'].includes(type)) {
+  if (metaInfoAttributeKeys.includes(type)) {
     return attributeGenerator(options, type, data)
   }
 

src/server/generators/tag.js

@@ -1,3 +1,5 @@
+import { tagsWithoutEndTag, tagsWithInnerContent, tagAttributeAsInnerContent } from '../../shared/constants'
+
 /**
  * Generates meta, base, link, style, script, noscript tags for use on the server
  *
@@ -21,7 +23,7 @@ export default function tagGenerator({ attribute, tagIDKeyName } = {}, type, tag
         // build a string containing all attributes of this tag
         const attrs = Object.keys(tag).reduce((attrsStr, attr) => {
           // these attributes are treated as children on the tag
-          if (['innerHTML', 'cssText', 'once'].includes(attr)) {
+          if (tagAttributeAsInnerContent.includes(attr) || attr === 'once') {
             return attrsStr
           }
 
@@ -45,10 +47,10 @@ export default function tagGenerator({ attribute, tagIDKeyName } = {}, type, tag
           : `${attribute}="true"`
 
         // these tags have no end tag
-        const hasEndTag = !['base', 'meta', 'link'].includes(type)
+        const hasEndTag = !tagsWithoutEndTag.includes(type)
 
         // these tag types will have content inserted
-        const hasContent = hasEndTag && ['noscript', 'script', 'style'].includes(type)
+        const hasContent = hasEndTag && tagsWithInnerContent.includes(type)
 
         // the final string for this specific tag
         return !hasContent

src/server/inject.js

@@ -1,4 +1,5 @@
 import getMetaInfo from '../shared/getMetaInfo'
+import { metaInfoOptionKeys } from '../shared/constants'
 import generateServerInjector from './generateServerInjector'
 
 export default function _inject(options = {}) {
@@ -16,7 +17,7 @@ export default function _inject(options = {}) {
 
     // generate server injectors
     for (const key in metaInfo) {
-      if (!['titleTemplate', 'titleChunk'].includes(key) && metaInfo.hasOwnProperty(key)) {
+      if (!metaInfoOptionKeys.includes(key) && metaInfo.hasOwnProperty(key)) {
         metaInfo[key] = generateServerInjector(options, key, metaInfo[key])
       }
     }

src/shared/constants.js

@@ -25,3 +25,23 @@ export const VUE_META_TEMPLATE_KEY_NAME = 'template'
 
 // This is the key name for the content-holding property
 export const VUE_META_CONTENT_KEY = 'content'
+
+export const metaInfoOptionKeys = [
+  'titleChunk',
+  'titleTemplate',
+  'changed',
+  '__dangerouslyDisableSanitizers',
+  '__dangerouslyDisableSanitizersByTagID'
+]
+
+export const metaInfoAttributeKeys = [
+  'htmlAttrs',
+  'headAttrs',
+  'bodyAttrs'
+]
+
+export const tagsWithoutEndTag = ['base', 'meta', 'link']
+
+export const tagsWithInnerContent = ['noscript', 'script', 'style']
+
+export const tagAttributeAsInnerContent = ['innerHTML', 'cssText']