Talk is cheap. Show me the code.

///////////////////////Tree Creation/////////////// ///////////////////////Tree Creation/////////////// ///////////////////////Tree Creation/////////////// function setRoot(obj: any, i ? : any, k ? : any) {     obj['root'] = i ? (i + '_' + k) : '0';     obj['expand'] = true;     if (obj.child) {         obj.child.forEach((val, key) => {             setRoot(val, obj['root'], key);         });     } } ///////////////////////Tree Search//////////////// ///////////////////////Tree Search//////////////// ///////////////////////Tree Search//////////////// console.clear(); var items = [     {         name: "a1",         id: 1,         children: [{             name: "a2",             id: 2,             children: []         },         {             name: "a3",             id: 3,             children: []         }]     },     {         name: "a11&q

***************************************************** commands are here : diskpart list disk select disk 1 clean create partition primary select partition 1 active format fs=ntfs quick exit after that past Boot file in Driver

Run Angular build using Node server : server.js const express = require('express'); const app = express(); app.set('port', process.env.PORT||4200); app.listen(app.get('port'), () => {     console.log('Server started!'); }); app.use(express.static('dist/')) app.use(function(req, res, next) {   res.header("Access-Control-Allow-Origin", "*");   res.header("Access-Control-Allow-Headers", "Origin, authentication, X-Requested-With, Content-Type, Accept");   next(); }); app.route('/').get((req, res) => {   var auth_user = req.headers['auth_user'] || 'admin-node';   var host = req.headers['host'] || 'localhost';   var result = {"user":auth_user,"host":host};   res.send(result); });

Angular 4-5-6 Interview Question /////////// Angualr 2/4/5/6/7 Interview Question /////////// 1.) What are the new features of Angular 4?     Revamped *ngIf and *ng For     Router ParamMap     TypeScript Compatibility     Animations Package     Dynamic Components     Angular Universal     Smaller and Quick     View Engine – AOT Compilation     Flat ES Modules (Flat ESM / FESM)     Source Maps for Templates 2.) Different between  Observable or Promise     Promise:         -A Promise handles a single event when an async operation completes or fails.         -usually only use with async data return         -not easy to cancel     Observable:         -are cancellable         -are retriable by nature such as retry and retryWhen         -stream data in multiple pipelines         -having array-like operations like map, filter etc         -can be created from other sources like events         -they are functions, which could be subscribed later on         -An Ob

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/////////// Angualr Interview Question /////////// 1.) Define the features of AngularJS.     The Template (View)     The Scope (Model)     The Controller (Controller)     Services     Filters     Directives 2.) What are the directive scopes in AngularJs?     Parent scope         – Whatever change you make in your directive that comes from the parent scope, will also reflect in the parent scope,         and it is also a default scope.     Child scope         – It is a nested scope which inherits a property from the parent scope. Also if any properties and function on the scope are not         connected with the parent scope directive, then a new child scope directive is created.     Isolated scope         – It is reusable and is used when we build a self-contained directive. It is only used for private and internal use which means it does not contain         any properties of the parent scope. 3.) How can we share the data between controllers in AngularJs?