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using System; public class Fighter { private IWeapon _weapon; public Fighter(IWeapon weapon) { _weapon = weapon; } public void Fight() { _weapon.Attack(); } } public interface IWeapon { void Attack(...
Dapper is a popular lightweight Object-Relational Mapping (ORM) library for .NET applications. It was developed by Stack Overflow to provide a simple and efficient way to work with databases while minimizing the performance overhead typically associa...
In JavaScript, variables are used to store and manage data. You can declare variables using the var, let, or const keywords. Starting with ES6 (ECMAScript 2015), it's recommended to use let and const over var for better scoping and immutability, resp...
In JavaScript, an array is a data structure that can hold multiple values of any type. Arrays are defined using square brackets [ ] and can contain elements separated by commas. Here are some examples of working with arrays in JavaScript: Creating an...
Primary Key: a. It must contain unique values for each row, meaning no two rows can have the same value in the primary key column(s). b. A primary key column cannot contain NULL values, as it must uniquely identify each row. c. A table can have only ...
The find() method is an array method that returns the first element in the array that satisfies the given condition and is undefined if no element matches the given condition. It does not change the array on which it is called and hence helps achieve...
In JavaScript, the filter() method helps to pick specific items from an array based on certain conditions. It creates a new array containing only the ones that match our criteria without changing the original array. If no elements pass the test, the ...
