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Server Side Programming Articles
Page 1698 of 2109
How to filter values from an array in TypeScript?
In this tutorial, users will learn to filter the values from the array in TypeScript. The filter is an important operation to manipulate the data we get from the database. For example, everyone has seen the filter on the Amazon, Flipkart, etc. websites to filter the products according to different criteria. To create something like that, either we can get the filtered data from the database directly, or we can get the whole data and filter at the frontend side from the array of the products, and it depends on some criteria such as database size, performance, etc. Use the ...
Read MoreHow to invoke methods of a particular class in TypeScript?
In this tutorial, users will learn to invoke a particular class method in TypeScript. The class is the basic concept of object-oriented programming. In simple terms, it contains member variables and methods we can access by creating the object of that particular class. So, class is the blueprint of the objects we create for that particular class. The class can contain the functions in TypeScript, and we can also call them to the method. So, users need to learn to access and invoke the method of the particular class. Invoking the method of a particular class in TypeScript In TypeScript, ...
Read MoreHaskell Program to print Hello World!
This tutorial will discuss writing a program to print Hello World! in Haskell Programming Language. The Computations in Haskell are done using mathematical functions. In this tutorial, We will discuss different ways to print Hello World! in Haskell. Program to print Hello World! Using the “print” function. Program to print Hello World! Using the “putStr” function. Program to print Hello World! Using the “putStrLn” function. Example Program to print Hello World! Using the “print” function main :: IO() main = do -- printing using the function print print ("Hello World!") Output Hello World! ...
Read MoreHaskell Program To Check Whether The Input String Is A Palindrome
This tutorial discusses writing a program to check whether the input string is a palindrome in the Haskell programming language. A string is said to be a palindrome when it results in an exact string after reversing it. For example, the string “level” is a palindrome because it results in an exact string even after reversing it. In this tutorial we see, Program to check whether the string is a palindrome using a built-in function reverse. Program to check whether the string is a palindrome using a recursive function. Method 1: Checking The String Is A Palindrome Using ...
Read MoreHaskell Program To Find The Factorial Of A Positive Number
This tutorial discusses writing a program to find the factorial of a positive number in the Haskell programming language. In this tutorial, we see Program to find the factorial of a positive number using a recursive function. Program to find the factorial of a positive number using an inbuilt function product. Algorithm Steps Take input or initialize a variable to store a positive integer. Implement program logic to find the factorial of a number. Print the resulting factorial. Method: Find The Factorial Of A Positive Number Using A Recursive Function Example Program to find the factorial ...
Read MoreC++ Program to Compute the Sum of Diagonals of a Matrix
The utilization of 2-dimensional arrays or matrices is extremely advantageous for several applications. Matrix rows and columns are used to hold numbers. We can define 2D matrices in C++ using multi-dimensional arrays as well. In this article, we'll look at how to use C++ to calculate the diagonal sum of a given square matrix. The matrices have two diagonals, the main diagonal and the secondary diagonal (sometimes referred to as major and minor diagonals). The major diagonal starts from the top-left corner (index [0, 0]) to the bottom-right corner (index [n-1, n-1]) where n is the order of the square ...
Read MoreC++ Program to Find the Normal and Trace
2-Dimensional arrays or matrices are very much useful in several applications. Matrices have rows and columns and store numbers inside them. In C++ also we can define 2D matrices using multi-dimensional arrays. In this article, we will see how to calculate the Normal and the Trace of a given matrix using C++. The Normal is the square root of the sum of all elements present in the matrix. And the trace is the sum of elements present in the main diagonal. Let us see the algorithm and C++ code representation. Matrix Normal $\begin{bmatrix} 5 & 1& 8ewline 4 ...
Read MoreC++ Program to Print first letter of each word using regex
A useful tool for string operations is regex. This may be found in virtually all high-level current programming languages, including C++. Regular expressions (Regex) are utilized as general-purpose search patterns. For instance, by constructing a straightforward string known as a regular expression, we may implement password validation logic with at least one capital, one lowercase, one number, one special character, and a total length of at least 8 characters. In this tutorial, we'll look at how to use C++ to display only the first letters of words included within a specified string. Here, we'll look at a sentence that uses ...
Read MoreC++ Program to Swapping Pair of Characters
A string is a group of characters. They can be described as character arrays as well. An array of characters can be thought of as strings, and each string has a set of indices and values. The switching of characters at two specified indices in a string is one of the modifications we can sometimes make to strings. In this article, we will see how to swap two characters in a string from two given indices using C++. Syntax char temp = String_variable[ ] String_variable[ ] = String_variable[ ] String_variable[ ] = temp Using indices, ...
Read MoreC++ Program to Replace a Character at a Specific Index
Strings are a collection of characters. We can also say them as character arrays. Considering an array of characters as strings, the strings have specified indices and values. Sometimes we can perform some modification on strings, one such modification is replacing characters by providing a specific index. In this article, we will see how to replace a character from a specific index inside a string using C++. Syntax String_variable[ ] = In C++ we can access the string characters using indices. Here to replace a character with some other character at a specified index, we simply ...
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