Code optimization: change non change var to const from let

src/main/webui/src/app/TimeUtils.js

@@ -28,13 +28,13 @@ export const TimeUtils = {
       return 'never';
     }
 
-    let hours = Math.floor(secs / (60 * 60));
+    const hours = Math.floor(secs / (60 * 60));
 
-    let mdiv = secs % (60 * 60);
-    let minutes = Math.floor(mdiv / 60);
+    const mdiv = secs % (60 * 60);
+    const minutes = Math.floor(mdiv / 60);
 
-    let sdiv = mdiv % 60;
-    let seconds = Math.ceil(sdiv);
+    const sdiv = mdiv % 60;
+    const seconds = Math.ceil(sdiv);
 
     let out = '';
     if (hours > 0){
@@ -66,7 +66,7 @@ export const TimeUtils = {
       return 'never';
     }
 
-    let date = new Date();
+    const date = new Date();
     date.setTime(milliseconds);
     return date.toLocaleString();
   },
@@ -78,9 +78,9 @@ export const TimeUtils = {
     if (secs < 1){
       return 'never';
     }
-    let nextDate = new Date(secs);
-    let toDay = new Date();
-    let total = nextDate.getTime() - toDay.getTime();
+    const nextDate = new Date(secs);
+    const toDay = new Date();
+    const total = nextDate.getTime() - toDay.getTime();
     return TimeUtils.secondsToDuration(total / 1000);
   }
 };

src/main/webui/src/app/components/CompUtils.js

@@ -16,7 +16,7 @@
 
 export const Utils = {
   remoteOptions: store => {
-    let options = [];
+    const options = [];
 
     if (store.allow_snapshots){
       options.push({icon: 'S', title: 'Snapshots allowed'});
@@ -28,7 +28,7 @@ export const Utils = {
     return options;
   },
   hostedOptions: store => {
-    let options = [];
+    const options = [];
 
     if (store.allow_snapshots){
       options.push({icon: 'S', title: 'Snapshots allowed'});
@@ -45,49 +45,49 @@ export const Utils = {
     return options;
   },
   detailHref: key => {
-    let parts = key.split(':');
+    const parts = key.split(':');
     return `/${parts[1]}/${parts[0]}/view/${parts[2]}`;
   },
   typeFromKey: key=>{
-    let parts = key.split(':');
+    const parts = key.split(':');
     return parts[1];
   },
   packageTypeFromKey: key => {
-    let parts = key.split(':');
+    const parts = key.split(':');
     return parts[0];
   },
   nameFromKey: key => {
-    let parts = key.split(':');
+    const parts = key.split(':');
     return parts[parts.length-1];
   },
   storeHref: key => {
-    let parts = key.split(':');
+    const parts = key.split(':');
 
     let hostAndPort = window.location.hostname;
     if (window.location.port !== '' && window.location.port !== 80 && window.location.port !== 443){
       hostAndPort += ':';
       hostAndPort += window.location.port;
     }
     //
-    // let basepath = window.location.pathname;
+    // const basepath = window.location.pathname;
     // basepath = basepath.replace('/app', '');
     // basepath = basepath.replace(/index.html.*/, '');
 
 
-    let proto = window.location.protocol;
+    const proto = window.location.protocol;
 
     // TODO: In-UI browser that allows simple searching
     return `${proto}//${hostAndPort}/api/content/${parts[0]}/${parts[1]}/${parts[2]}`;
   },
   setDisableMap: listing => {
-    let disabledMap = {};
+    const disabledMap = {};
 
-    let items = listing.items;
+    const items = listing.items;
     if (items) {
       for(let i = 0; i<items.length; i++){
-        let item = items[i];
-        let parts = item.group.split(':');
-        let key = parts[0] + ':' + parts[1] + ':' + parts[2];
+        const item = items[i];
+        const parts = item.group.split(':');
+        const key = parts[0] + ':' + parts[1] + ':' + parts[2];
         // console.log("DISABLED: " + key + " (until: " + item.expiration + ")");
         disabledMap[key] = item.expiration;
       }
@@ -96,7 +96,7 @@ export const Utils = {
   },
   isDisabled: (key, disabledMap) => {
     if(disabledMap && disabledMap.size > 0){
-      let result = key in disabledMap;
+      const result = key in disabledMap;
       return result;
     }
     return false;
@@ -119,13 +119,13 @@ export const Utils = {
     return constituents;
   },
   searchByKeyForNewStores: (searchString, rawStoresList)=>{
-    let newListing=[];
+    const newListing=[];
     rawStoresList.forEach(item=>item.key.toLowerCase().includes(searchString.toLowerCase()) && newListing.push(item));
     return newListing;
   },
   isEmptyObj: obj => Object.keys(obj).length === 0 && obj.constructor === Object,
   cloneObj: src => {
-    let target = {};
+    const target = {};
     for (const prop in src) {
       if (prop in src) {
         target[prop] = src[prop];
@@ -134,7 +134,7 @@ export const Utils = {
     return target;
   },
   logMessage: (message, ...params) => {
-    let allParams = [message];
+    const allParams = [message];
     params.forEach(p => allParams.push(p));
     Reflect.apply(console.log, undefined, allParams);
   }

src/main/webui/src/app/components/content/Hints.jsx

@@ -61,7 +61,7 @@ DisableTimeoutHint.propTypes = {
 };
 
 const PrefetchHint = ({children}) => {
-  let suggestion = children ? children:
+  const suggestion = children ? children:
     'Integer to indicate the pre-fetching priority of the remote, higher means more eager to do the ' +
     'pre-fetching of the content in the repo, 0 or below means disable the pre-fecthing.';
 
@@ -73,7 +73,7 @@ PrefetchHint.propTypes = {
 };
 
 const DurationHint = ({children}) => {
-  let suggestion = children ? children : "24h 36m 00s";
+  const suggestion = children ? children : "24h 36m 00s";
   return <span className="hint">({`eg. ${suggestion}`})</span>;
 };
 

src/main/webui/src/app/components/content/RemoteList.jsx

@@ -82,9 +82,9 @@ export default function RemoteList() {
 
   init(state, setState);
   // Utils.logMessage(state);
-  let listing = state.listing;
-  let disMap = state.disabledMap;
-  let orderBys = [
+  const listing = state.listing;
+  const disMap = state.disabledMap;
+  const orderBys = [
     {value: 'key', text: 'Name'},
     {value: 'url', text: 'Remote URL'}
   ];

src/main/webui/src/app/components/content/RemoteView.jsx

@@ -31,8 +31,8 @@ const init = (pkgType, storeName, setState) => {
     const fetchStore = async () => {
       const response = await jsonRest.get(storeUrl);
       if (response.ok){
-        let raw = await response.json();
-        let store = Utils.cloneObj(raw);
+        const raw = await response.json();
+        const store = Utils.cloneObj(raw);
         store.disabled = raw.disabled === undefined ? false : raw.disabled;
         store.useX509 = raw.server_certificate_pem || raw.key_certificate_pem;
         store.useProxy = raw.proxy_host && true;
@@ -42,7 +42,7 @@ const init = (pkgType, storeName, setState) => {
         // get Store disablement data
         const timeoutUrl = `/api/admin/schedule/store/${store.packageType}/${store.type}/${store.name}/disable-timeout`;
         const timeoutResponse = await jsonRest.get(timeoutUrl);
-        let newStore = Utils.cloneObj(store);
+        const newStore = Utils.cloneObj(store);
         if(timeoutResponse.ok){
           const timeoutData = await timeoutResponse.json();
           newStore.disableExpiration = timeoutData.expiration;
@@ -87,7 +87,7 @@ export default function RemoteView() {
   });
   const {packageType, name} = useParams();
   init(packageType, name, setState);
-  let store = state.store;
+  const store = state.store;
   if(!Utils.isEmptyObj(store)) {
     return (
       <div className="container-fluid">

src/main/webui/src/app/components/nav/NavFooter.jsx

@@ -18,7 +18,7 @@ import React from 'react';
 
 export default function NavFooter() {
   // TODO: stats will be render based on the backend addons response, this is a mock;
-  let stats = {
+  const stats = {
     version: "1.6.0",
     commitId: "f472176",
     builder: "ligangty",

src/main/webui/src/content-browse/DirectoryListing.jsx

@@ -35,17 +35,17 @@ const getFullHost = () => {
 };
 
 const URLList = props => {
-  let elems = [];
+  const elems = [];
   if(props.parentUrl){
-    let parentUrl = props.parentUrl.replace("/api/browse", "/browse");
+    const parentUrl = props.parentUrl.replace("/api/browse", "/browse");
     elems.push(<li key="parent"><a href={parentUrl}>..</a></li>);
   }
   if(props.urls){
     props.urls.forEach((urlResult, index)=>{
-      let source = `sources:\n${urlResult.sources.join("\n")}`;
-      let url = replaceUrl(urlResult.listingUrl);
-      let paths = urlResult.path.split('/');
-      let path = urlResult.path.endsWith("/")? paths[paths.length-2] + "/" : paths[paths.length-1];
+      const source = `sources:\n${urlResult.sources.join("\n")}`;
+      const url = replaceUrl(urlResult.listingUrl);
+      const paths = urlResult.path.split('/');
+      const path = urlResult.path.endsWith("/")? paths[paths.length-2] + "/" : paths[paths.length-1];
       elems.push(<li key={"urlList"+index}><a className="item-link" title={source} href={url} path={urlResult.path}>{path}</a></li>);
     });
   }
@@ -63,7 +63,7 @@ URLList.propTypes = {
 
 const Footer = props => {
   const elems = props.sources && props.sources.map((src, index)=>{
-      let url = src.replace(/http(s{0,1}):\/\/.*?\//u, getFullHost()+"/");
+      const url = src.replace(/http(s{0,1}):\/\/.*?\//u, getFullHost()+"/");
       return <li key={"footer"+index}><a className="source-link" title={url} href={url}>{url}</a></li>;
     });
   return(
@@ -81,7 +81,7 @@ Footer.propTypes = {
 };
 
 const getStoreKey = storeKey => {
-  let storeElems = storeKey.split(":");
+  const storeElems = storeKey.split(":");
   return {
     "packageType": storeElems[0],
     "type": storeElems[1],