As we’ll be using the browser as our demo environment, let’s see a couple of functions to interact with the user: alert, prompt and confirm. alert This one we’ve seen already. It shows a message and waits for the user to presses “OK”. For Read More …
Author: Kennedy
Part – 4; Data Types
A value in JavaScript is always of a certain type. For example, a string or a number. There are eight basic data types in JavaScript. Here, we’ll cover them in general and in the next chapters we’ll talk about each Read More …
Part – 3: Variables
Most of the time, a JavaScript application needs to work with information. Here are two examples: An online shop – the information might include goods being sold and a shopping cart.A chat application – the information might include users, messages, Read More …
Part – 2: Syntax
Code structure The first thing we’ll study is the building blocks of code. Statements Statements are syntax constructs and commands that perform actions. We’ve already seen a statement, alert(‘Hello, world!’), which shows the message “Hello, world!”. We can have as many Read More …
Part – 1: Introduction
Hello, world! This part of the tutorial is about core JavaScript, the language itself. But we need a working environment to run our scripts and, since this book is online, the browser is a good choice. We’ll keep the amount Read More …
Part 2: How to quickly search for SQL database data and objects in SSMS
Frequently, developers and DBAs need to search databases for objects or data. If a database function that contains a specific table column or a variable name, or for a table that contains specific data is searched, the simple solution for Read More …
Part 1: MSSQL Frequently Asked Questions
1. Selecting all the values from a table for a particular date This is a very popular question and people sometimes answer that you need to use between. There is a problem with between if you happen to have a Read More …
Part 3: Logic and Conditionals
Boolean Expressions A boolean expression is any expression that evaluates to, or returns, a boolean value. Boolean Type The bool data type can be either true or false and is based on the concept that the validity of all logical statements must be either true or false. Booleans Read More …
Part 2: Data Types and Variables
Write Line The Console.WriteLine() method is used to print text to the console. It can also be used to print other data types and values stored in variables. Variables and Types In C#, a variable is a way to store data in Read More …
Part 1: Hello World
Read Line The Console.ReadLine() method is used to get user input. The user input can be stored in a variable. This method can also be used to prompt the user to press enter on the keyboard. C C# is a general-purpose, type-safe, object-oriented programming Read More …