CG Darpan

Create a Database CREATE DATABASE my_database; USE my_database; DROP DATABASE my_database; Create a Table CREATETABLE Persons (ID int not null primary key,LastName varchar(255),FirstName varchar(255),Address varchar(255),City varchar(255)); DROP TABLEtable_name; Insert Into Insert Into Edu ( ID, Name) Values ( 01, ‘Chandan’); Table Show Select Select * From Edu; Select  Name  From  Edu; Select * From Edu  Where id=12; … Read more

Data binding in angular Interpolation ({{ }}) — for displaying data Property binding ([property]=”value”) — for binding values to HTML attributes Event binding ((event)=”handler()”) — for listening to events Two-way binding ([(ngModel)]=”value”) — for two-way data sync (requires FormsModule) <!– Interpolation –> <h1>{{ title }}</h1> <p>{{ message }}</p> <!– Property Binding –> <input [value]=”message” /> … Read more

Create Components – user.component.ts user.component.html user.component.css

Create Backend – backend Folder– mkdir backendcd backendnpm init -y npm install express mysql2 cors body-parser Create Backend Folder – ├── backend/│ ├── server.js│ ├── db.js│ ├── routes/│ │ └── userRoutes.js Create Database – CREATE DATABASE testdb; USE testdb; CREATE TABLE users (id INT PRIMARY KEY,name VARCHAR(100),company VARCHAR(100),phone VARCHAR(20),photo TEXT); Run Server – node server.js … Read more

.Find the missing number in a given integer array of 1 to 100 let arr = [1,2,3,4,5,6,7,8,10];const findMissingNum = (arr) => { for(var i = 0; i < arr.length – 1; i++) { if(arr[i] + 1 != arr[i+1] ) { return arr[i] + 1; } } return false; }console.log(findMissingNum(arr)); // Returns 9, the missing number … Read more

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