Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Articles on Trending Technologies
Technical articles with clear explanations and examples
New Array from Index Range Swift
In Swift, you can create an array using the ArraySlice type. The following examples will show how to use the ArraySlice type. You can create an extension as well to define the subscript method. Example 1 In the following example, we create an array of numbers with values from 0 to 9 and then create a range of indices from startIndex to endIndex (exclusive). Using this range we can generate an ArraySlice of the original array. In the end, we will convert the ArraySlice to an array using the Array initializer and print the result. import Foundation let numbers = ...
Read MoreMultiple Type Constraints in Swift
In Swift, there are several ways to implement type constraints on types. We will use some common approaches like the where clause, protocol, etc. Generics provide lots of flexibility to write better and more secure code in Swift. We can apply generics to collections, custom types, etc. One of them is generic type constraints. Using type constraints, you can make your generic code behave that matches a certain set of constraints whatever you define. Swift provides multiple ways to specify type constraints on generic type parameters. Type constraints using the "where" clause The "where" clause in Swift is a highly ...
Read MoreHow to assign an action to the UIImageView object in Swift?
In the iOS applications, the UIImageView class does not provide in-build support to make it clickable like other components e.g. UIButton. In order to make UIImageView clickable, you can add a UITapGestureRecognizer to the image view. Remember that, by default, UIImageView does not take any interaction from the user. To make it interactable, set true to the isUserInteractionEnabled property. In this article, you will learn how you can add a tag gesture to the image view in Swift. To add a tap gesture, we will follow these steps − Step 1 - Create an Image View let profileImageView = ...
Read MoreHow to test the equality of Swift enums with associated values?
In Swift, you can use the Equatable protocol to compare enums with associated values. In this article, we will see how we can compare them using the Equatable protocol with an example. Enumeration with Associated Values In Swift, you can provide a value along with an enum case. This makes enumeration more powerful in Swift. A Swift feature called an enumeration with associated values enables you to design a type that can have a finite set of cases, each of which can have a unique set of associated values of any type. This enables you to link data to each ...
Read More5 Tips to Boost Performance of Your Apache Web Server
When it comes to serving web pages, Apache web server is one of most popular choices out there. With its open-source nature, stability, and flexibility, Apache is used by millions of websites worldwide. However, like any other software, it requires proper configuration and optimization to ensure top performance. In this article, we'll look at 5 tips that can help boost performance of your Apache web server. Enable Caching One of most effective ways to boost performance of your Apache web server is to enable caching. Caching is process of storing frequently accessed data in memory or on disk to reduce ...
Read More8 Easy Ways to Use Social Media to Improve Your SEO
SEO is a process that involves working on other aspects of a digital marketing campaign, which can have an impact on our web pages' performance in search results. This includes social media optimization and the enhancement of our web pages' signals. It is very important that you improve your SEO strategy because it will help boost your search engine ranking and increase the visibility of your website. However, due to the fierce competition, appearing in search results can be a challenge. The link between SEO and social signals is an indirect one, which means that an improved social signal won't ...
Read More10 Most Important SEO KPIs You Should Be Tracking
How can you improve the effectiveness of your SEO strategy? You can answer these questions and more by monitoring the various performance metrics that you can use to develop and implement effective strategies. KPIs are a set of tools that allow you to identify which actions work and which don't. One of the most important factors that you should consider when it comes to monitoring the performance of your website is ensuring that you are spending the right amount of money on the right keywords. KPIs for SEO are tools that help you measure the effectiveness of your efforts. They ...
Read More11 Best Free SEO Tools for 2023
Through search engines, we can see what our collective wants, concerns, and questions are. Being knowledgeable about SEO can help you develop effective business strategies. For instance, by analyzing the volume of searches, you can determine the demand for a particular product idea. Unfortunately, most of the tools that are used for e-commerce SEO are usually much more expensive than you can afford to spend There are a lot of great all-purpose SEO tools, such as Moz, SEMRush, and Ahrefs, but they can be very expensive when you start a blog. There is therefore a need for free SEO tools ...
Read MoreThe Impact of COVID-19 on Digital Marketing
With almost every industry receiving a blow during the pandemic, the digital marketing sector naturally got affected, at least to some extent. Initially, businesses had put their marketing activities on hold until they figured out more effective ways to promote their products and services. Due to high unemployment rates and salary cuts, people were reluctant to spend their hard-earned money on luxury or unnecessary items. Besides, customers were forced to stay indoors to maintain social distancing norms, which compelled many traditional brick-and-mortar stores to close their doors. Such a situation made businesses think of strengthening their digital advertising strategies ...
Read MoreHow is CPM Different from CPV in Digital Marketing?
Advertisers and digital marketers often have a hard time staying on top of search engine results. They need to take care of multiple factors, such as different performance marketing strategies and pricing models. By defining marketing objectives, advertisers determine the best approach to advertise a campaign and use appropriate performance metrics to gain more valuable insights. Adding to your challenges, there are innumerable terms advertisers need to learn, making things overwhelming for new advertisers and small-scale businesses. However, once you grasp a basic idea of different performance marketing pricing structures, you can make smarter decisions. You can determine the ...
Read More