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Server Side Programming Articles
Page 1688 of 2109
Golang Program To Display Upper Triangular Matrix
In this article, we will write a go language program to print the upper triangular matrix of any given matrix. Introduction − A square matrix is called an upper triangular matrix if it has zero values below the principal diagonal. A matrix is displayed in its upper triangular form only if it is square. i.e. it must have the same number of rows and columns. The order of a typical upper triangular matrix is N X N. Method 1: Display Upper Triangular Matrix using For Loops In this method, we will write a go language program to display upper ...
Read MoreExplain the concept of null and its uses in TypeScript
In TypeScript, ‘null’ refers to the data type or value. The null is a keyword in TypeScript, which we can use to represent the absent or empty value. So, we can use ‘null’ to define the variable's data-type or initialize the variable. In this tutorial, we will learn the different use cases of the null value and data type in TypeScript. Syntax Users can follow the syntax below to use the null keyword as a data type or value. let null_var: null = null; In the above syntax, ‘null’ refers to the data type of the null_var named ...
Read MoreWhat are the new features in Swift 4.0?
In this tutorial, you are going to learn what changes have been released in Swift 4. Every time, Apple releases major versions with lots of improvements and additions to APIs. The new features introduced in Swift 4.0 include improved key paths for key-value coding, encoding and decoding, multi-line string literals, Strings are collections, improved dictionary functionality, one-sided ranges, and many other code enhancements. Encoding & Decoding In Swift 4.0, Apple introduced the Codable protocol to make encoding and decoding easy for developers. You can implement serialization and deserialization in your code using this protocol. You can encode and decode your ...
Read MoreWhat is Red Hat Cloud?
"The cloud" suggests servers gotten over the Internet and the item and databases that abruptly spike popularity for those servers. Cloud servers are arranged in server ranches from one side of the planet to the next. By using disseminated registering, clients and associations don't have to direct genuine servers themselves or run programming apps on their machines. The cloud enables clients to access comparative records and apps from essentially any device because the handling and storing occur on servers in a server ranch instead of locally on the client contraption. To this end, a client can sign in to their ...
Read MoreHow to search for an array element in TypeScript?
In TypeScript, while working with the array, we often require to search for a particular element. To search for an element, either we can use the naive approach using the for loop or some built-in method such as the find() or indexOf() method. Also, we will learn to find the particular object in the array based on the object property. Using the for-of Loop to Search a Particular Element in The Array The naive approach to searching for an element is using linear search. In linear search, we need to iterate through the array using the for loop and check ...
Read MoreHow to specify optional properties in TypeScript?
We will learn to specify the option properties in TypeScript. The true meaning of the optional property is that properties can be undefined or null, and we can initialize them whenever required. In real-time development, the importance of optional properties is very much. For example, we are fetching the data from the API and performing some operations on the data. If you try to use the data without getting it due to the database server being down or if there is any other problem, it will raise an error. In such case, we can make the data property optional and ...
Read MoreHow to find the natural logarithm of a number in TypeScript?
The natural logarithm is the logarithm of any numeric value to the base e. Here e is Euler's constant, and the value of Euler’s constant is approximately 2.718. In TypeScript, we can use the built-in library methods to find the natural logarithm of any numeric value greater than or equal to zero. Using the Math.log() Method Math is a library of TypeScript which contains all the methods to perform mathematical operations. Inside the Math object, all methods are static. So, we can directly access all methods by taking Math (object name) as a reference. The math method also contains the ...
Read MoreHow to create an array of objects in TypeScript?
In TypeScript, the array contains the data or different values and can also contain an object. The object contains the properties and methods in TypeScript. We can access the object properties and invoke the object method by taking the object as a reference. In this tutorial, we will learn to create an array of multiple objects in TypeScript. We will also learn to perform some operations, such as sorting on the array of objects. Syntax Here, we have given the syntax to follow to create the array of objects. let obj_array: Array = [{object properties}] In the above syntax, ...
Read MoreExplain Enum in TypeScript
Before getting into “enum, ” it is essential to know about the popular keyword “const” in typescript. When we declare a variable "const", we cannot change the value assigned to it. So, enums are nothing but a collection of these const data types. We can create enums with the help of the "enum" keyword. Enum is an abbreviation for Enumerations, and each constant variable declared under the enum is called a member of that enum. In this article, we will learn about enums in typescript, their features, and the major types of enums. Features of enum in TypeScript Enums ...
Read MorePrecision String Format Specifier In Swift
It is sometimes necessary to format strings in a custom format in order to use them in an application. For example, you can format product prices, decimal-point numbers, etc. In Swift, you can use precision specifiers to specify the number of decimal places or the number of characters to be displayed in a string. Example 1 To specify the number of decimal places for a floating-point number, you can use the %.nf format specifier, where n is the number of decimal places., import Foundation let productPrice = 300.3456789 let formattedPrice = String(format: "%.2f", productPrice) print("The formatted price is: ", formattedPrice) ...
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