fix(cloudcmd) drop support of node < 14

.putout.json

@@ -1,4 +1,7 @@
 {
+    "rules": {
+        "apply-optional-chaining": "on"
+    },
     "ignore": [
         "fixture*",
         "dist*",

client/dom/index.js

@@ -638,7 +638,7 @@ function CmdProto() {
         if (!current)
             DOM.getCurrentFile();
         
-        const parent = current && current.parentElement;
+        const parent = current?.parentElement;
         const name = DOM.getCurrentName(current);
         
         if (current && name !== '..') {
@@ -685,7 +685,7 @@ function CmdProto() {
     
     /* scroll on one page */
     this.scrollByPages = (element, pPages) => {
-        const ret = element && element.scrollByPages && pPages;
+        const ret = element?.scrollByPages && pPages;
         
         if (ret)
             element.scrollByPages(pPages);

client/listeners/index.js

@@ -103,7 +103,7 @@ function getPath(el, path = []) {
 
 async function config() {
     const [, config] = await tryToCatch(DOM.Files.get, 'config');
-    const type = config && config.packer;
+    const type = config?.packer;
     
     EXT = DOM.getPackerExt(type);
 }
@@ -461,7 +461,7 @@ function dragndrop() {
 function unload() {
     DOM.Events.add(['unload', 'beforeunload'], (event) => {
         const {Key} = CloudCmd;
-        const isBind = Key && Key.isBind();
+        const isBind = Key?.isBind();
         
         if (isBind)
             return;

client/sw/register.js

@@ -4,7 +4,7 @@ module.exports.registerSW = registerSW;
 module.exports.unregisterSW = unregisterSW;
 
 module.exports.listenSW = (sw, ...args) => {
-    sw && sw.addEventListener(...args);
+    sw?.addEventListener(...args);
 };
 
 async function registerSW(prefix) {
@@ -21,6 +21,6 @@ async function registerSW(prefix) {
 }
 async function unregisterSW(prefix) {
     const reg = await registerSW(prefix);
-    reg && reg.unregister(prefix);
+    reg?.unregister(prefix);
 }
 

package.json

@@ -220,7 +220,7 @@
     "yaspeller": "^7.0.0"
   },
   "engines": {
-    "node": ">=12"
+    "node": ">=14"
   },
   "license": "MIT",
   "main": "server/cloudcmd.js",

server/exit.js

@@ -1,6 +1,6 @@
 'use strict';
 
-const getMessage = (a) => a && a.message || a;
+const getMessage = (a) => a?.message || a;
 
 module.exports = (...args) => {
     const messages = args.map(getMessage);

server/rest/index.js

@@ -70,7 +70,7 @@ function rest(config, request, response) {
         if (options.query)
             params.query = options.query;
         
-        if (error && error.code)
+        if (error?.code)
             return ponse.sendError(error, params);
         
         if (error)